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julius |
/* SPARC-specific support for ELF
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Copyright 2005, 2006, 2007, 2008 Free Software Foundation, Inc.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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/* This file handles functionality common to the different SPARC ABI's. */
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#include "sysdep.h"
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#include "bfd.h"
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#include "bfdlink.h"
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#include "libbfd.h"
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#include "libiberty.h"
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#include "elf-bfd.h"
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#include "elf/sparc.h"
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#include "opcode/sparc.h"
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#include "elfxx-sparc.h"
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#include "elf-vxworks.h"
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/* In case we're on a 32-bit machine, construct a 64-bit "-1" value. */
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#define MINUS_ONE (~ (bfd_vma) 0)
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#define ABI_64_P(abfd) \
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(get_elf_backend_data (abfd)->s->elfclass == ELFCLASS64)
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/* The relocation "howto" table. */
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/* Utility for performing the standard initial work of an instruction
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relocation.
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*PRELOCATION will contain the relocated item.
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*PINSN will contain the instruction from the input stream.
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If the result is `bfd_reloc_other' the caller can continue with
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performing the relocation. Otherwise it must stop and return the
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value to its caller. */
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static bfd_reloc_status_type
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init_insn_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
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PTR data, asection *input_section, bfd *output_bfd,
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bfd_vma *prelocation, bfd_vma *pinsn)
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{
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bfd_vma relocation;
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reloc_howto_type *howto = reloc_entry->howto;
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if (output_bfd != (bfd *) NULL
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&& (symbol->flags & BSF_SECTION_SYM) == 0
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&& (! howto->partial_inplace
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|| reloc_entry->addend == 0))
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{
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reloc_entry->address += input_section->output_offset;
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return bfd_reloc_ok;
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}
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/* This works because partial_inplace is FALSE. */
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if (output_bfd != NULL)
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return bfd_reloc_continue;
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if (reloc_entry->address > bfd_get_section_limit (abfd, input_section))
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return bfd_reloc_outofrange;
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relocation = (symbol->value
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+ symbol->section->output_section->vma
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+ symbol->section->output_offset);
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relocation += reloc_entry->addend;
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if (howto->pc_relative)
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{
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relocation -= (input_section->output_section->vma
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+ input_section->output_offset);
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relocation -= reloc_entry->address;
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}
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*prelocation = relocation;
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*pinsn = bfd_get_32 (abfd, (bfd_byte *) data + reloc_entry->address);
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return bfd_reloc_other;
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}
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/* For unsupported relocs. */
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static bfd_reloc_status_type
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sparc_elf_notsup_reloc (bfd *abfd ATTRIBUTE_UNUSED,
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arelent *reloc_entry ATTRIBUTE_UNUSED,
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asymbol *symbol ATTRIBUTE_UNUSED,
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PTR data ATTRIBUTE_UNUSED,
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asection *input_section ATTRIBUTE_UNUSED,
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bfd *output_bfd ATTRIBUTE_UNUSED,
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char **error_message ATTRIBUTE_UNUSED)
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{
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return bfd_reloc_notsupported;
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}
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/* Handle the WDISP16 reloc. */
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static bfd_reloc_status_type
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sparc_elf_wdisp16_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
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PTR data, asection *input_section, bfd *output_bfd,
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char **error_message ATTRIBUTE_UNUSED)
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{
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bfd_vma relocation;
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bfd_vma insn;
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bfd_reloc_status_type status;
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status = init_insn_reloc (abfd, reloc_entry, symbol, data,
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input_section, output_bfd, &relocation, &insn);
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if (status != bfd_reloc_other)
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return status;
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insn &= ~ (bfd_vma) 0x303fff;
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insn |= (((relocation >> 2) & 0xc000) << 6) | ((relocation >> 2) & 0x3fff);
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bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
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if ((bfd_signed_vma) relocation < - 0x40000
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|| (bfd_signed_vma) relocation > 0x3ffff)
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return bfd_reloc_overflow;
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else
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return bfd_reloc_ok;
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}
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/* Handle the HIX22 reloc. */
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static bfd_reloc_status_type
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sparc_elf_hix22_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
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PTR data, asection *input_section, bfd *output_bfd,
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char **error_message ATTRIBUTE_UNUSED)
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{
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bfd_vma relocation;
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bfd_vma insn;
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bfd_reloc_status_type status;
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status = init_insn_reloc (abfd, reloc_entry, symbol, data,
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input_section, output_bfd, &relocation, &insn);
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if (status != bfd_reloc_other)
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return status;
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relocation ^= MINUS_ONE;
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insn = (insn &~ (bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
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bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
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if ((relocation & ~ (bfd_vma) 0xffffffff) != 0)
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return bfd_reloc_overflow;
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else
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return bfd_reloc_ok;
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}
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/* Handle the LOX10 reloc. */
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static bfd_reloc_status_type
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sparc_elf_lox10_reloc (bfd *abfd, arelent *reloc_entry, asymbol *symbol,
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PTR data, asection *input_section, bfd *output_bfd,
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char **error_message ATTRIBUTE_UNUSED)
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{
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bfd_vma relocation;
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bfd_vma insn;
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bfd_reloc_status_type status;
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status = init_insn_reloc (abfd, reloc_entry, symbol, data,
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input_section, output_bfd, &relocation, &insn);
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if (status != bfd_reloc_other)
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return status;
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insn = (insn &~ (bfd_vma) 0x1fff) | 0x1c00 | (relocation & 0x3ff);
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bfd_put_32 (abfd, insn, (bfd_byte *) data + reloc_entry->address);
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return bfd_reloc_ok;
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}
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static reloc_howto_type _bfd_sparc_elf_howto_table[] =
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{
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HOWTO(R_SPARC_NONE, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_NONE", FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_8, 0,0, 8,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_8", FALSE,0,0x000000ff,TRUE),
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HOWTO(R_SPARC_16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_16", FALSE,0,0x0000ffff,TRUE),
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HOWTO(R_SPARC_32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_32", FALSE,0,0xffffffff,TRUE),
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HOWTO(R_SPARC_DISP8, 0,0, 8,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP8", FALSE,0,0x000000ff,TRUE),
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HOWTO(R_SPARC_DISP16, 0,1,16,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP16", FALSE,0,0x0000ffff,TRUE),
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HOWTO(R_SPARC_DISP32, 0,2,32,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP32", FALSE,0,0xffffffff,TRUE),
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HOWTO(R_SPARC_WDISP30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP30", FALSE,0,0x3fffffff,TRUE),
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HOWTO(R_SPARC_WDISP22, 2,2,22,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_HI22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HI22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_22, 0,2,22,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_13, 0,2,13,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_13", FALSE,0,0x00001fff,TRUE),
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HOWTO(R_SPARC_LO10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LO10", FALSE,0,0x000003ff,TRUE),
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HOWTO(R_SPARC_GOT10, 0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT10", FALSE,0,0x000003ff,TRUE),
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HOWTO(R_SPARC_GOT13, 0,2,13,FALSE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_GOT13", FALSE,0,0x00001fff,TRUE),
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HOWTO(R_SPARC_GOT22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOT22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_PC10, 0,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC10", FALSE,0,0x000003ff,TRUE),
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HOWTO(R_SPARC_PC22, 10,2,22,TRUE, 0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PC22", FALSE,0,0x003fffff,TRUE),
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HOWTO(R_SPARC_WPLT30, 2,2,30,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WPLT30", FALSE,0,0x3fffffff,TRUE),
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HOWTO(R_SPARC_COPY, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_COPY", FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_GLOB_DAT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GLOB_DAT",FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_JMP_SLOT, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_JMP_SLOT",FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_RELATIVE, 0,0,00,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_RELATIVE",FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_UA32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA32", FALSE,0,0xffffffff,TRUE),
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HOWTO(R_SPARC_PLT32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT32", FALSE,0,0xffffffff,TRUE),
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HOWTO(R_SPARC_HIPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_HIPLT22", FALSE,0,0x00000000,TRUE),
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HOWTO(R_SPARC_LOPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_LOPLT10", FALSE,0,0x00000000,TRUE),
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209 |
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HOWTO(R_SPARC_PCPLT32, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT32", FALSE,0,0x00000000,TRUE),
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210 |
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HOWTO(R_SPARC_PCPLT22, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT22", FALSE,0,0x00000000,TRUE),
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211 |
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HOWTO(R_SPARC_PCPLT10, 0,0,00,FALSE,0,complain_overflow_dont, sparc_elf_notsup_reloc, "R_SPARC_PCPLT10", FALSE,0,0x00000000,TRUE),
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212 |
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HOWTO(R_SPARC_10, 0,2,10,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_10", FALSE,0,0x000003ff,TRUE),
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213 |
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HOWTO(R_SPARC_11, 0,2,11,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_11", FALSE,0,0x000007ff,TRUE),
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214 |
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HOWTO(R_SPARC_64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_64", FALSE,0,MINUS_ONE, TRUE),
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215 |
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HOWTO(R_SPARC_OLO10, 0,2,13,FALSE,0,complain_overflow_signed, sparc_elf_notsup_reloc, "R_SPARC_OLO10", FALSE,0,0x00001fff,TRUE),
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216 |
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HOWTO(R_SPARC_HH22, 42,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_HH22", FALSE,0,0x003fffff,TRUE),
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217 |
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HOWTO(R_SPARC_HM10, 32,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_HM10", FALSE,0,0x000003ff,TRUE),
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218 |
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HOWTO(R_SPARC_LM22, 10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_LM22", FALSE,0,0x003fffff,TRUE),
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219 |
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HOWTO(R_SPARC_PC_HH22, 42,2,22,TRUE, 0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_PC_HH22", FALSE,0,0x003fffff,TRUE),
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220 |
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HOWTO(R_SPARC_PC_HM10, 32,2,10,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_HM10", FALSE,0,0x000003ff,TRUE),
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221 |
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HOWTO(R_SPARC_PC_LM22, 10,2,22,TRUE, 0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_PC_LM22", FALSE,0,0x003fffff,TRUE),
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222 |
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HOWTO(R_SPARC_WDISP16, 2,2,16,TRUE, 0,complain_overflow_signed, sparc_elf_wdisp16_reloc,"R_SPARC_WDISP16", FALSE,0,0x00000000,TRUE),
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223 |
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HOWTO(R_SPARC_WDISP19, 2,2,19,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_WDISP19", FALSE,0,0x0007ffff,TRUE),
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224 |
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HOWTO(R_SPARC_UNUSED_42, 0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_UNUSED_42",FALSE,0,0x00000000,TRUE),
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225 |
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HOWTO(R_SPARC_7, 0,2, 7,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_7", FALSE,0,0x0000007f,TRUE),
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226 |
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HOWTO(R_SPARC_5, 0,2, 5,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_5", FALSE,0,0x0000001f,TRUE),
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227 |
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HOWTO(R_SPARC_6, 0,2, 6,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_6", FALSE,0,0x0000003f,TRUE),
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228 |
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HOWTO(R_SPARC_DISP64, 0,4,64,TRUE, 0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_DISP64", FALSE,0,MINUS_ONE, TRUE),
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229 |
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HOWTO(R_SPARC_PLT64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_PLT64", FALSE,0,MINUS_ONE, TRUE),
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230 |
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HOWTO(R_SPARC_HIX22, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_HIX22", FALSE,0,MINUS_ONE, FALSE),
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231 |
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HOWTO(R_SPARC_LOX10, 0,4, 0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_LOX10", FALSE,0,MINUS_ONE, FALSE),
|
232 |
|
|
HOWTO(R_SPARC_H44, 22,2,22,FALSE,0,complain_overflow_unsigned,bfd_elf_generic_reloc, "R_SPARC_H44", FALSE,0,0x003fffff,FALSE),
|
233 |
|
|
HOWTO(R_SPARC_M44, 12,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_M44", FALSE,0,0x000003ff,FALSE),
|
234 |
|
|
HOWTO(R_SPARC_L44, 0,2,13,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_L44", FALSE,0,0x00000fff,FALSE),
|
235 |
|
|
HOWTO(R_SPARC_REGISTER, 0,4, 0,FALSE,0,complain_overflow_bitfield,sparc_elf_notsup_reloc, "R_SPARC_REGISTER",FALSE,0,MINUS_ONE, FALSE),
|
236 |
|
|
HOWTO(R_SPARC_UA64, 0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA64", FALSE,0,MINUS_ONE, TRUE),
|
237 |
|
|
HOWTO(R_SPARC_UA16, 0,1,16,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_UA16", FALSE,0,0x0000ffff,TRUE),
|
238 |
|
|
HOWTO(R_SPARC_TLS_GD_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_HI22",FALSE,0,0x003fffff,TRUE),
|
239 |
|
|
HOWTO(R_SPARC_TLS_GD_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_LO10",FALSE,0,0x000003ff,TRUE),
|
240 |
|
|
HOWTO(R_SPARC_TLS_GD_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_ADD",FALSE,0,0x00000000,TRUE),
|
241 |
|
|
HOWTO(R_SPARC_TLS_GD_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_GD_CALL",FALSE,0,0x3fffffff,TRUE),
|
242 |
|
|
HOWTO(R_SPARC_TLS_LDM_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_HI22",FALSE,0,0x003fffff,TRUE),
|
243 |
|
|
HOWTO(R_SPARC_TLS_LDM_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_LO10",FALSE,0,0x000003ff,TRUE),
|
244 |
|
|
HOWTO(R_SPARC_TLS_LDM_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_ADD",FALSE,0,0x00000000,TRUE),
|
245 |
|
|
HOWTO(R_SPARC_TLS_LDM_CALL,2,2,30,TRUE,0,complain_overflow_signed, bfd_elf_generic_reloc, "R_SPARC_TLS_LDM_CALL",FALSE,0,0x3fffffff,TRUE),
|
246 |
|
|
HOWTO(R_SPARC_TLS_LDO_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_TLS_LDO_HIX22",FALSE,0,0x003fffff, FALSE),
|
247 |
|
|
HOWTO(R_SPARC_TLS_LDO_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LDO_LOX10",FALSE,0,0x000003ff, FALSE),
|
248 |
|
|
HOWTO(R_SPARC_TLS_LDO_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_LDO_ADD",FALSE,0,0x00000000,TRUE),
|
249 |
|
|
HOWTO(R_SPARC_TLS_IE_HI22,10,2,22,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_HI22",FALSE,0,0x003fffff,TRUE),
|
250 |
|
|
HOWTO(R_SPARC_TLS_IE_LO10,0,2,10,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LO10",FALSE,0,0x000003ff,TRUE),
|
251 |
|
|
HOWTO(R_SPARC_TLS_IE_LD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LD",FALSE,0,0x00000000,TRUE),
|
252 |
|
|
HOWTO(R_SPARC_TLS_IE_LDX,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_LDX",FALSE,0,0x00000000,TRUE),
|
253 |
|
|
HOWTO(R_SPARC_TLS_IE_ADD,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_IE_ADD",FALSE,0,0x00000000,TRUE),
|
254 |
|
|
HOWTO(R_SPARC_TLS_LE_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc, "R_SPARC_TLS_LE_HIX22",FALSE,0,0x003fffff, FALSE),
|
255 |
|
|
HOWTO(R_SPARC_TLS_LE_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_TLS_LE_LOX10",FALSE,0,0x000003ff, FALSE),
|
256 |
|
|
HOWTO(R_SPARC_TLS_DTPMOD32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD32",FALSE,0,0x00000000,TRUE),
|
257 |
|
|
HOWTO(R_SPARC_TLS_DTPMOD64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_DTPMOD64",FALSE,0,0x00000000,TRUE),
|
258 |
|
|
HOWTO(R_SPARC_TLS_DTPOFF32,0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF32",FALSE,0,0xffffffff,TRUE),
|
259 |
|
|
HOWTO(R_SPARC_TLS_DTPOFF64,0,4,64,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc,"R_SPARC_TLS_DTPOFF64",FALSE,0,MINUS_ONE,TRUE),
|
260 |
|
|
HOWTO(R_SPARC_TLS_TPOFF32,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF32",FALSE,0,0x00000000,TRUE),
|
261 |
|
|
HOWTO(R_SPARC_TLS_TPOFF64,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_TLS_TPOFF64",FALSE,0,0x00000000,TRUE),
|
262 |
|
|
HOWTO(R_SPARC_GOTDATA_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_HIX22",FALSE,0,0x003fffff, FALSE),
|
263 |
|
|
HOWTO(R_SPARC_GOTDATA_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_LOX10",FALSE,0,0x000003ff, FALSE),
|
264 |
|
|
HOWTO(R_SPARC_GOTDATA_OP_HIX22,0,2,0,FALSE,0,complain_overflow_bitfield,sparc_elf_hix22_reloc,"R_SPARC_GOTDATA_OP_HIX22",FALSE,0,0x003fffff, FALSE),
|
265 |
|
|
HOWTO(R_SPARC_GOTDATA_OP_LOX10,0,2,0,FALSE,0,complain_overflow_dont, sparc_elf_lox10_reloc, "R_SPARC_GOTDATA_OP_LOX10",FALSE,0,0x000003ff, FALSE),
|
266 |
|
|
HOWTO(R_SPARC_GOTDATA_OP,0,0, 0,FALSE,0,complain_overflow_dont, bfd_elf_generic_reloc, "R_SPARC_GOTDATA_OP",FALSE,0,0x00000000,TRUE),
|
267 |
|
|
};
|
268 |
|
|
static reloc_howto_type sparc_vtinherit_howto =
|
269 |
|
|
HOWTO (R_SPARC_GNU_VTINHERIT, 0,2,0,FALSE,0,complain_overflow_dont, NULL, "R_SPARC_GNU_VTINHERIT", FALSE,0, 0, FALSE);
|
270 |
|
|
static reloc_howto_type sparc_vtentry_howto =
|
271 |
|
|
HOWTO (R_SPARC_GNU_VTENTRY, 0,2,0,FALSE,0,complain_overflow_dont, _bfd_elf_rel_vtable_reloc_fn,"R_SPARC_GNU_VTENTRY", FALSE,0,0, FALSE);
|
272 |
|
|
static reloc_howto_type sparc_rev32_howto =
|
273 |
|
|
HOWTO(R_SPARC_REV32, 0,2,32,FALSE,0,complain_overflow_bitfield,bfd_elf_generic_reloc, "R_SPARC_REV32", FALSE,0,0xffffffff,TRUE);
|
274 |
|
|
|
275 |
|
|
struct elf_reloc_map {
|
276 |
|
|
bfd_reloc_code_real_type bfd_reloc_val;
|
277 |
|
|
unsigned char elf_reloc_val;
|
278 |
|
|
};
|
279 |
|
|
|
280 |
|
|
static const struct elf_reloc_map sparc_reloc_map[] =
|
281 |
|
|
{
|
282 |
|
|
{ BFD_RELOC_NONE, R_SPARC_NONE, },
|
283 |
|
|
{ BFD_RELOC_16, R_SPARC_16, },
|
284 |
|
|
{ BFD_RELOC_16_PCREL, R_SPARC_DISP16 },
|
285 |
|
|
{ BFD_RELOC_8, R_SPARC_8 },
|
286 |
|
|
{ BFD_RELOC_8_PCREL, R_SPARC_DISP8 },
|
287 |
|
|
{ BFD_RELOC_CTOR, R_SPARC_64 },
|
288 |
|
|
{ BFD_RELOC_32, R_SPARC_32 },
|
289 |
|
|
{ BFD_RELOC_32_PCREL, R_SPARC_DISP32 },
|
290 |
|
|
{ BFD_RELOC_HI22, R_SPARC_HI22 },
|
291 |
|
|
{ BFD_RELOC_LO10, R_SPARC_LO10, },
|
292 |
|
|
{ BFD_RELOC_32_PCREL_S2, R_SPARC_WDISP30 },
|
293 |
|
|
{ BFD_RELOC_64_PCREL, R_SPARC_DISP64 },
|
294 |
|
|
{ BFD_RELOC_SPARC22, R_SPARC_22 },
|
295 |
|
|
{ BFD_RELOC_SPARC13, R_SPARC_13 },
|
296 |
|
|
{ BFD_RELOC_SPARC_GOT10, R_SPARC_GOT10 },
|
297 |
|
|
{ BFD_RELOC_SPARC_GOT13, R_SPARC_GOT13 },
|
298 |
|
|
{ BFD_RELOC_SPARC_GOT22, R_SPARC_GOT22 },
|
299 |
|
|
{ BFD_RELOC_SPARC_PC10, R_SPARC_PC10 },
|
300 |
|
|
{ BFD_RELOC_SPARC_PC22, R_SPARC_PC22 },
|
301 |
|
|
{ BFD_RELOC_SPARC_WPLT30, R_SPARC_WPLT30 },
|
302 |
|
|
{ BFD_RELOC_SPARC_COPY, R_SPARC_COPY },
|
303 |
|
|
{ BFD_RELOC_SPARC_GLOB_DAT, R_SPARC_GLOB_DAT },
|
304 |
|
|
{ BFD_RELOC_SPARC_JMP_SLOT, R_SPARC_JMP_SLOT },
|
305 |
|
|
{ BFD_RELOC_SPARC_RELATIVE, R_SPARC_RELATIVE },
|
306 |
|
|
{ BFD_RELOC_SPARC_WDISP22, R_SPARC_WDISP22 },
|
307 |
|
|
{ BFD_RELOC_SPARC_UA16, R_SPARC_UA16 },
|
308 |
|
|
{ BFD_RELOC_SPARC_UA32, R_SPARC_UA32 },
|
309 |
|
|
{ BFD_RELOC_SPARC_UA64, R_SPARC_UA64 },
|
310 |
|
|
{ BFD_RELOC_SPARC_10, R_SPARC_10 },
|
311 |
|
|
{ BFD_RELOC_SPARC_11, R_SPARC_11 },
|
312 |
|
|
{ BFD_RELOC_SPARC_64, R_SPARC_64 },
|
313 |
|
|
{ BFD_RELOC_SPARC_OLO10, R_SPARC_OLO10 },
|
314 |
|
|
{ BFD_RELOC_SPARC_HH22, R_SPARC_HH22 },
|
315 |
|
|
{ BFD_RELOC_SPARC_HM10, R_SPARC_HM10 },
|
316 |
|
|
{ BFD_RELOC_SPARC_LM22, R_SPARC_LM22 },
|
317 |
|
|
{ BFD_RELOC_SPARC_PC_HH22, R_SPARC_PC_HH22 },
|
318 |
|
|
{ BFD_RELOC_SPARC_PC_HM10, R_SPARC_PC_HM10 },
|
319 |
|
|
{ BFD_RELOC_SPARC_PC_LM22, R_SPARC_PC_LM22 },
|
320 |
|
|
{ BFD_RELOC_SPARC_WDISP16, R_SPARC_WDISP16 },
|
321 |
|
|
{ BFD_RELOC_SPARC_WDISP19, R_SPARC_WDISP19 },
|
322 |
|
|
{ BFD_RELOC_SPARC_7, R_SPARC_7 },
|
323 |
|
|
{ BFD_RELOC_SPARC_5, R_SPARC_5 },
|
324 |
|
|
{ BFD_RELOC_SPARC_6, R_SPARC_6 },
|
325 |
|
|
{ BFD_RELOC_SPARC_DISP64, R_SPARC_DISP64 },
|
326 |
|
|
{ BFD_RELOC_SPARC_TLS_GD_HI22, R_SPARC_TLS_GD_HI22 },
|
327 |
|
|
{ BFD_RELOC_SPARC_TLS_GD_LO10, R_SPARC_TLS_GD_LO10 },
|
328 |
|
|
{ BFD_RELOC_SPARC_TLS_GD_ADD, R_SPARC_TLS_GD_ADD },
|
329 |
|
|
{ BFD_RELOC_SPARC_TLS_GD_CALL, R_SPARC_TLS_GD_CALL },
|
330 |
|
|
{ BFD_RELOC_SPARC_TLS_LDM_HI22, R_SPARC_TLS_LDM_HI22 },
|
331 |
|
|
{ BFD_RELOC_SPARC_TLS_LDM_LO10, R_SPARC_TLS_LDM_LO10 },
|
332 |
|
|
{ BFD_RELOC_SPARC_TLS_LDM_ADD, R_SPARC_TLS_LDM_ADD },
|
333 |
|
|
{ BFD_RELOC_SPARC_TLS_LDM_CALL, R_SPARC_TLS_LDM_CALL },
|
334 |
|
|
{ BFD_RELOC_SPARC_TLS_LDO_HIX22, R_SPARC_TLS_LDO_HIX22 },
|
335 |
|
|
{ BFD_RELOC_SPARC_TLS_LDO_LOX10, R_SPARC_TLS_LDO_LOX10 },
|
336 |
|
|
{ BFD_RELOC_SPARC_TLS_LDO_ADD, R_SPARC_TLS_LDO_ADD },
|
337 |
|
|
{ BFD_RELOC_SPARC_TLS_IE_HI22, R_SPARC_TLS_IE_HI22 },
|
338 |
|
|
{ BFD_RELOC_SPARC_TLS_IE_LO10, R_SPARC_TLS_IE_LO10 },
|
339 |
|
|
{ BFD_RELOC_SPARC_TLS_IE_LD, R_SPARC_TLS_IE_LD },
|
340 |
|
|
{ BFD_RELOC_SPARC_TLS_IE_LDX, R_SPARC_TLS_IE_LDX },
|
341 |
|
|
{ BFD_RELOC_SPARC_TLS_IE_ADD, R_SPARC_TLS_IE_ADD },
|
342 |
|
|
{ BFD_RELOC_SPARC_TLS_LE_HIX22, R_SPARC_TLS_LE_HIX22 },
|
343 |
|
|
{ BFD_RELOC_SPARC_TLS_LE_LOX10, R_SPARC_TLS_LE_LOX10 },
|
344 |
|
|
{ BFD_RELOC_SPARC_TLS_DTPMOD32, R_SPARC_TLS_DTPMOD32 },
|
345 |
|
|
{ BFD_RELOC_SPARC_TLS_DTPMOD64, R_SPARC_TLS_DTPMOD64 },
|
346 |
|
|
{ BFD_RELOC_SPARC_TLS_DTPOFF32, R_SPARC_TLS_DTPOFF32 },
|
347 |
|
|
{ BFD_RELOC_SPARC_TLS_DTPOFF64, R_SPARC_TLS_DTPOFF64 },
|
348 |
|
|
{ BFD_RELOC_SPARC_TLS_TPOFF32, R_SPARC_TLS_TPOFF32 },
|
349 |
|
|
{ BFD_RELOC_SPARC_TLS_TPOFF64, R_SPARC_TLS_TPOFF64 },
|
350 |
|
|
{ BFD_RELOC_SPARC_PLT32, R_SPARC_PLT32 },
|
351 |
|
|
{ BFD_RELOC_SPARC_PLT64, R_SPARC_PLT64 },
|
352 |
|
|
{ BFD_RELOC_SPARC_HIX22, R_SPARC_HIX22 },
|
353 |
|
|
{ BFD_RELOC_SPARC_LOX10, R_SPARC_LOX10 },
|
354 |
|
|
{ BFD_RELOC_SPARC_H44, R_SPARC_H44 },
|
355 |
|
|
{ BFD_RELOC_SPARC_M44, R_SPARC_M44 },
|
356 |
|
|
{ BFD_RELOC_SPARC_L44, R_SPARC_L44 },
|
357 |
|
|
{ BFD_RELOC_SPARC_GOTDATA_HIX22, R_SPARC_GOTDATA_HIX22 },
|
358 |
|
|
{ BFD_RELOC_SPARC_GOTDATA_LOX10, R_SPARC_GOTDATA_LOX10 },
|
359 |
|
|
{ BFD_RELOC_SPARC_GOTDATA_OP_HIX22, R_SPARC_GOTDATA_OP_HIX22 },
|
360 |
|
|
{ BFD_RELOC_SPARC_GOTDATA_OP_LOX10, R_SPARC_GOTDATA_OP_LOX10 },
|
361 |
|
|
{ BFD_RELOC_SPARC_GOTDATA_OP, R_SPARC_GOTDATA_OP },
|
362 |
|
|
{ BFD_RELOC_SPARC_REGISTER, R_SPARC_REGISTER },
|
363 |
|
|
{ BFD_RELOC_VTABLE_INHERIT, R_SPARC_GNU_VTINHERIT },
|
364 |
|
|
{ BFD_RELOC_VTABLE_ENTRY, R_SPARC_GNU_VTENTRY },
|
365 |
|
|
{ BFD_RELOC_SPARC_REV32, R_SPARC_REV32 },
|
366 |
|
|
};
|
367 |
|
|
|
368 |
|
|
reloc_howto_type *
|
369 |
|
|
_bfd_sparc_elf_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
370 |
|
|
bfd_reloc_code_real_type code)
|
371 |
|
|
{
|
372 |
|
|
unsigned int i;
|
373 |
|
|
|
374 |
|
|
switch (code)
|
375 |
|
|
{
|
376 |
|
|
case BFD_RELOC_VTABLE_INHERIT:
|
377 |
|
|
return &sparc_vtinherit_howto;
|
378 |
|
|
|
379 |
|
|
case BFD_RELOC_VTABLE_ENTRY:
|
380 |
|
|
return &sparc_vtentry_howto;
|
381 |
|
|
|
382 |
|
|
case BFD_RELOC_SPARC_REV32:
|
383 |
|
|
return &sparc_rev32_howto;
|
384 |
|
|
|
385 |
|
|
default:
|
386 |
|
|
for (i = 0;
|
387 |
|
|
i < sizeof (sparc_reloc_map) / sizeof (struct elf_reloc_map);
|
388 |
|
|
i++)
|
389 |
|
|
{
|
390 |
|
|
if (sparc_reloc_map[i].bfd_reloc_val == code)
|
391 |
|
|
return (_bfd_sparc_elf_howto_table
|
392 |
|
|
+ (int) sparc_reloc_map[i].elf_reloc_val);
|
393 |
|
|
}
|
394 |
|
|
}
|
395 |
|
|
bfd_set_error (bfd_error_bad_value);
|
396 |
|
|
return NULL;
|
397 |
|
|
}
|
398 |
|
|
|
399 |
|
|
reloc_howto_type *
|
400 |
|
|
_bfd_sparc_elf_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
|
401 |
|
|
const char *r_name)
|
402 |
|
|
{
|
403 |
|
|
unsigned int i;
|
404 |
|
|
|
405 |
|
|
for (i = 0;
|
406 |
|
|
i < (sizeof (_bfd_sparc_elf_howto_table)
|
407 |
|
|
/ sizeof (_bfd_sparc_elf_howto_table[0]));
|
408 |
|
|
i++)
|
409 |
|
|
if (_bfd_sparc_elf_howto_table[i].name != NULL
|
410 |
|
|
&& strcasecmp (_bfd_sparc_elf_howto_table[i].name, r_name) == 0)
|
411 |
|
|
return &_bfd_sparc_elf_howto_table[i];
|
412 |
|
|
|
413 |
|
|
if (strcasecmp (sparc_vtinherit_howto.name, r_name) == 0)
|
414 |
|
|
return &sparc_vtinherit_howto;
|
415 |
|
|
if (strcasecmp (sparc_vtentry_howto.name, r_name) == 0)
|
416 |
|
|
return &sparc_vtentry_howto;
|
417 |
|
|
if (strcasecmp (sparc_rev32_howto.name, r_name) == 0)
|
418 |
|
|
return &sparc_rev32_howto;
|
419 |
|
|
|
420 |
|
|
return NULL;
|
421 |
|
|
}
|
422 |
|
|
|
423 |
|
|
reloc_howto_type *
|
424 |
|
|
_bfd_sparc_elf_info_to_howto_ptr (unsigned int r_type)
|
425 |
|
|
{
|
426 |
|
|
switch (r_type)
|
427 |
|
|
{
|
428 |
|
|
case R_SPARC_GNU_VTINHERIT:
|
429 |
|
|
return &sparc_vtinherit_howto;
|
430 |
|
|
|
431 |
|
|
case R_SPARC_GNU_VTENTRY:
|
432 |
|
|
return &sparc_vtentry_howto;
|
433 |
|
|
|
434 |
|
|
case R_SPARC_REV32:
|
435 |
|
|
return &sparc_rev32_howto;
|
436 |
|
|
|
437 |
|
|
default:
|
438 |
|
|
if (r_type >= (unsigned int) R_SPARC_max_std)
|
439 |
|
|
{
|
440 |
|
|
(*_bfd_error_handler) (_("invalid relocation type %d"),
|
441 |
|
|
(int) r_type);
|
442 |
|
|
r_type = R_SPARC_NONE;
|
443 |
|
|
}
|
444 |
|
|
return &_bfd_sparc_elf_howto_table[r_type];
|
445 |
|
|
}
|
446 |
|
|
}
|
447 |
|
|
|
448 |
|
|
/* Both 32-bit and 64-bit sparc encode this in an identical manner,
|
449 |
|
|
so just take advantage of that. */
|
450 |
|
|
#define SPARC_ELF_R_TYPE(r_info) \
|
451 |
|
|
((r_info) & 0xff)
|
452 |
|
|
|
453 |
|
|
void
|
454 |
|
|
_bfd_sparc_elf_info_to_howto (bfd *abfd ATTRIBUTE_UNUSED, arelent *cache_ptr,
|
455 |
|
|
Elf_Internal_Rela *dst)
|
456 |
|
|
{
|
457 |
|
|
unsigned int r_type = SPARC_ELF_R_TYPE (dst->r_info);
|
458 |
|
|
|
459 |
|
|
cache_ptr->howto = _bfd_sparc_elf_info_to_howto_ptr (r_type);
|
460 |
|
|
}
|
461 |
|
|
|
462 |
|
|
|
463 |
|
|
/* The nop opcode we use. */
|
464 |
|
|
#define SPARC_NOP 0x01000000
|
465 |
|
|
|
466 |
|
|
#define SPARC_INSN_BYTES 4
|
467 |
|
|
|
468 |
|
|
/* The SPARC linker needs to keep track of the number of relocs that it
|
469 |
|
|
decides to copy as dynamic relocs in check_relocs for each symbol.
|
470 |
|
|
This is so that it can later discard them if they are found to be
|
471 |
|
|
unnecessary. We store the information in a field extending the
|
472 |
|
|
regular ELF linker hash table. */
|
473 |
|
|
|
474 |
|
|
struct _bfd_sparc_elf_dyn_relocs
|
475 |
|
|
{
|
476 |
|
|
struct _bfd_sparc_elf_dyn_relocs *next;
|
477 |
|
|
|
478 |
|
|
/* The input section of the reloc. */
|
479 |
|
|
asection *sec;
|
480 |
|
|
|
481 |
|
|
/* Total number of relocs copied for the input section. */
|
482 |
|
|
bfd_size_type count;
|
483 |
|
|
|
484 |
|
|
/* Number of pc-relative relocs copied for the input section. */
|
485 |
|
|
bfd_size_type pc_count;
|
486 |
|
|
};
|
487 |
|
|
|
488 |
|
|
/* SPARC ELF linker hash entry. */
|
489 |
|
|
|
490 |
|
|
struct _bfd_sparc_elf_link_hash_entry
|
491 |
|
|
{
|
492 |
|
|
struct elf_link_hash_entry elf;
|
493 |
|
|
|
494 |
|
|
/* Track dynamic relocs copied for this symbol. */
|
495 |
|
|
struct _bfd_sparc_elf_dyn_relocs *dyn_relocs;
|
496 |
|
|
|
497 |
|
|
#define GOT_UNKNOWN 0
|
498 |
|
|
#define GOT_NORMAL 1
|
499 |
|
|
#define GOT_TLS_GD 2
|
500 |
|
|
#define GOT_TLS_IE 3
|
501 |
|
|
unsigned char tls_type;
|
502 |
|
|
};
|
503 |
|
|
|
504 |
|
|
#define _bfd_sparc_elf_hash_entry(ent) ((struct _bfd_sparc_elf_link_hash_entry *)(ent))
|
505 |
|
|
|
506 |
|
|
struct _bfd_sparc_elf_obj_tdata
|
507 |
|
|
{
|
508 |
|
|
struct elf_obj_tdata root;
|
509 |
|
|
|
510 |
|
|
/* tls_type for each local got entry. */
|
511 |
|
|
char *local_got_tls_type;
|
512 |
|
|
|
513 |
|
|
/* TRUE if TLS GD relocs has been seen for this object. */
|
514 |
|
|
bfd_boolean has_tlsgd;
|
515 |
|
|
};
|
516 |
|
|
|
517 |
|
|
#define _bfd_sparc_elf_tdata(abfd) \
|
518 |
|
|
((struct _bfd_sparc_elf_obj_tdata *) (abfd)->tdata.any)
|
519 |
|
|
|
520 |
|
|
#define _bfd_sparc_elf_local_got_tls_type(abfd) \
|
521 |
|
|
(_bfd_sparc_elf_tdata (abfd)->local_got_tls_type)
|
522 |
|
|
|
523 |
|
|
#define is_sparc_elf(bfd) \
|
524 |
|
|
(bfd_get_flavour (bfd) == bfd_target_elf_flavour \
|
525 |
|
|
&& elf_tdata (bfd) != NULL \
|
526 |
|
|
&& elf_object_id (bfd) == SPARC_ELF_TDATA)
|
527 |
|
|
|
528 |
|
|
bfd_boolean
|
529 |
|
|
_bfd_sparc_elf_mkobject (bfd *abfd)
|
530 |
|
|
{
|
531 |
|
|
return bfd_elf_allocate_object (abfd, sizeof (struct _bfd_sparc_elf_obj_tdata),
|
532 |
|
|
SPARC_ELF_TDATA);
|
533 |
|
|
}
|
534 |
|
|
|
535 |
|
|
static void
|
536 |
|
|
sparc_put_word_32 (bfd *bfd, bfd_vma val, void *ptr)
|
537 |
|
|
{
|
538 |
|
|
bfd_put_32 (bfd, val, ptr);
|
539 |
|
|
}
|
540 |
|
|
|
541 |
|
|
static void
|
542 |
|
|
sparc_put_word_64 (bfd *bfd, bfd_vma val, void *ptr)
|
543 |
|
|
{
|
544 |
|
|
bfd_put_64 (bfd, val, ptr);
|
545 |
|
|
}
|
546 |
|
|
|
547 |
|
|
static void
|
548 |
|
|
sparc_elf_append_rela (bfd *abfd, asection *s, Elf_Internal_Rela *rel)
|
549 |
|
|
{
|
550 |
|
|
const struct elf_backend_data *bed;
|
551 |
|
|
bfd_byte *loc;
|
552 |
|
|
|
553 |
|
|
bed = get_elf_backend_data (abfd);
|
554 |
|
|
loc = s->contents + (s->reloc_count++ * bed->s->sizeof_rela);
|
555 |
|
|
bed->s->swap_reloca_out (abfd, rel, loc);
|
556 |
|
|
}
|
557 |
|
|
|
558 |
|
|
static bfd_vma
|
559 |
|
|
sparc_elf_r_info_64 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
|
560 |
|
|
bfd_vma index ATTRIBUTE_UNUSED,
|
561 |
|
|
bfd_vma type ATTRIBUTE_UNUSED)
|
562 |
|
|
{
|
563 |
|
|
return ELF64_R_INFO (index,
|
564 |
|
|
(in_rel ?
|
565 |
|
|
ELF64_R_TYPE_INFO (ELF64_R_TYPE_DATA (in_rel->r_info),
|
566 |
|
|
type) : type));
|
567 |
|
|
}
|
568 |
|
|
|
569 |
|
|
static bfd_vma
|
570 |
|
|
sparc_elf_r_info_32 (Elf_Internal_Rela *in_rel ATTRIBUTE_UNUSED,
|
571 |
|
|
bfd_vma index, bfd_vma type)
|
572 |
|
|
{
|
573 |
|
|
return ELF32_R_INFO (index, type);
|
574 |
|
|
}
|
575 |
|
|
|
576 |
|
|
static bfd_vma
|
577 |
|
|
sparc_elf_r_symndx_64 (bfd_vma r_info)
|
578 |
|
|
{
|
579 |
|
|
bfd_vma r_symndx = ELF32_R_SYM (r_info);
|
580 |
|
|
return (r_symndx >> 24);
|
581 |
|
|
}
|
582 |
|
|
|
583 |
|
|
static bfd_vma
|
584 |
|
|
sparc_elf_r_symndx_32 (bfd_vma r_info)
|
585 |
|
|
{
|
586 |
|
|
return ELF32_R_SYM (r_info);
|
587 |
|
|
}
|
588 |
|
|
|
589 |
|
|
/* PLT/GOT stuff */
|
590 |
|
|
|
591 |
|
|
#define PLT32_ENTRY_SIZE 12
|
592 |
|
|
#define PLT32_HEADER_SIZE (4 * PLT32_ENTRY_SIZE)
|
593 |
|
|
|
594 |
|
|
/* The first four entries in a 32-bit procedure linkage table are reserved,
|
595 |
|
|
and the initial contents are unimportant (we zero them out).
|
596 |
|
|
Subsequent entries look like this. See the SVR4 ABI SPARC
|
597 |
|
|
supplement to see how this works. */
|
598 |
|
|
|
599 |
|
|
/* sethi %hi(.-.plt0),%g1. We fill in the address later. */
|
600 |
|
|
#define PLT32_ENTRY_WORD0 0x03000000
|
601 |
|
|
/* b,a .plt0. We fill in the offset later. */
|
602 |
|
|
#define PLT32_ENTRY_WORD1 0x30800000
|
603 |
|
|
/* nop. */
|
604 |
|
|
#define PLT32_ENTRY_WORD2 SPARC_NOP
|
605 |
|
|
|
606 |
|
|
static int
|
607 |
|
|
sparc32_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
|
608 |
|
|
bfd_vma max ATTRIBUTE_UNUSED,
|
609 |
|
|
bfd_vma *r_offset)
|
610 |
|
|
{
|
611 |
|
|
bfd_put_32 (output_bfd,
|
612 |
|
|
PLT32_ENTRY_WORD0 + offset,
|
613 |
|
|
splt->contents + offset);
|
614 |
|
|
bfd_put_32 (output_bfd,
|
615 |
|
|
(PLT32_ENTRY_WORD1
|
616 |
|
|
+ (((- (offset + 4)) >> 2) & 0x3fffff)),
|
617 |
|
|
splt->contents + offset + 4);
|
618 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) PLT32_ENTRY_WORD2,
|
619 |
|
|
splt->contents + offset + 8);
|
620 |
|
|
|
621 |
|
|
*r_offset = offset;
|
622 |
|
|
|
623 |
|
|
return offset / PLT32_ENTRY_SIZE - 4;
|
624 |
|
|
}
|
625 |
|
|
|
626 |
|
|
/* Both the headers and the entries are icache aligned. */
|
627 |
|
|
#define PLT64_ENTRY_SIZE 32
|
628 |
|
|
#define PLT64_HEADER_SIZE (4 * PLT64_ENTRY_SIZE)
|
629 |
|
|
#define PLT64_LARGE_THRESHOLD 32768
|
630 |
|
|
|
631 |
|
|
static int
|
632 |
|
|
sparc64_plt_entry_build (bfd *output_bfd, asection *splt, bfd_vma offset,
|
633 |
|
|
bfd_vma max, bfd_vma *r_offset)
|
634 |
|
|
{
|
635 |
|
|
unsigned char *entry = splt->contents + offset;
|
636 |
|
|
const unsigned int nop = SPARC_NOP;
|
637 |
|
|
int index;
|
638 |
|
|
|
639 |
|
|
if (offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
|
640 |
|
|
{
|
641 |
|
|
unsigned int sethi, ba;
|
642 |
|
|
|
643 |
|
|
*r_offset = offset;
|
644 |
|
|
|
645 |
|
|
index = (offset / PLT64_ENTRY_SIZE);
|
646 |
|
|
|
647 |
|
|
sethi = 0x03000000 | (index * PLT64_ENTRY_SIZE);
|
648 |
|
|
ba = 0x30680000
|
649 |
|
|
| (((splt->contents + PLT64_ENTRY_SIZE) - (entry + 4)) / 4 & 0x7ffff);
|
650 |
|
|
|
651 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) sethi, entry);
|
652 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) ba, entry + 4);
|
653 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 8);
|
654 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 12);
|
655 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 16);
|
656 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 20);
|
657 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 24);
|
658 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) nop, entry + 28);
|
659 |
|
|
}
|
660 |
|
|
else
|
661 |
|
|
{
|
662 |
|
|
unsigned char *ptr;
|
663 |
|
|
unsigned int ldx;
|
664 |
|
|
int block, last_block, ofs, last_ofs, chunks_this_block;
|
665 |
|
|
const int insn_chunk_size = (6 * 4);
|
666 |
|
|
const int ptr_chunk_size = (1 * 8);
|
667 |
|
|
const int entries_per_block = 160;
|
668 |
|
|
const int block_size = entries_per_block * (insn_chunk_size
|
669 |
|
|
+ ptr_chunk_size);
|
670 |
|
|
|
671 |
|
|
/* Entries 32768 and higher are grouped into blocks of 160.
|
672 |
|
|
The blocks are further subdivided into 160 sequences of
|
673 |
|
|
6 instructions and 160 pointers. If a block does not require
|
674 |
|
|
the full 160 entries, let's say it requires N, then there
|
675 |
|
|
will be N sequences of 6 instructions and N pointers. */
|
676 |
|
|
|
677 |
|
|
offset -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
|
678 |
|
|
max -= (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE);
|
679 |
|
|
|
680 |
|
|
block = offset / block_size;
|
681 |
|
|
last_block = max / block_size;
|
682 |
|
|
if (block != last_block)
|
683 |
|
|
{
|
684 |
|
|
chunks_this_block = 160;
|
685 |
|
|
}
|
686 |
|
|
else
|
687 |
|
|
{
|
688 |
|
|
last_ofs = max % block_size;
|
689 |
|
|
chunks_this_block = last_ofs / (insn_chunk_size + ptr_chunk_size);
|
690 |
|
|
}
|
691 |
|
|
|
692 |
|
|
ofs = offset % block_size;
|
693 |
|
|
|
694 |
|
|
index = (PLT64_LARGE_THRESHOLD +
|
695 |
|
|
(block * 160) +
|
696 |
|
|
(ofs / insn_chunk_size));
|
697 |
|
|
|
698 |
|
|
ptr = splt->contents
|
699 |
|
|
+ (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
|
700 |
|
|
+ (block * block_size)
|
701 |
|
|
+ (chunks_this_block * insn_chunk_size)
|
702 |
|
|
+ (ofs / insn_chunk_size) * ptr_chunk_size;
|
703 |
|
|
|
704 |
|
|
*r_offset = (bfd_vma) (ptr - splt->contents);
|
705 |
|
|
|
706 |
|
|
ldx = 0xc25be000 | ((ptr - (entry+4)) & 0x1fff);
|
707 |
|
|
|
708 |
|
|
/* mov %o7,%g5
|
709 |
|
|
call .+8
|
710 |
|
|
nop
|
711 |
|
|
ldx [%o7+P],%g1
|
712 |
|
|
jmpl %o7+%g1,%g1
|
713 |
|
|
mov %g5,%o7 */
|
714 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0x8a10000f, entry);
|
715 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0x40000002, entry + 4);
|
716 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP, entry + 8);
|
717 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) ldx, entry + 12);
|
718 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0x83c3c001, entry + 16);
|
719 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) 0x9e100005, entry + 20);
|
720 |
|
|
|
721 |
|
|
bfd_put_64 (output_bfd, (bfd_vma) (splt->contents - (entry + 4)), ptr);
|
722 |
|
|
}
|
723 |
|
|
|
724 |
|
|
return index - 4;
|
725 |
|
|
}
|
726 |
|
|
|
727 |
|
|
/* The format of the first PLT entry in a VxWorks executable. */
|
728 |
|
|
static const bfd_vma sparc_vxworks_exec_plt0_entry[] =
|
729 |
|
|
{
|
730 |
|
|
0x05000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+8), %g2 */
|
731 |
|
|
0x8410a000, /* or %g2, %lo(_GLOBAL_OFFSET_TABLE_+8), %g2 */
|
732 |
|
|
0xc4008000, /* ld [ %g2 ], %g2 */
|
733 |
|
|
0x81c08000, /* jmp %g2 */
|
734 |
|
|
0x01000000 /* nop */
|
735 |
|
|
};
|
736 |
|
|
|
737 |
|
|
/* The format of subsequent PLT entries. */
|
738 |
|
|
static const bfd_vma sparc_vxworks_exec_plt_entry[] =
|
739 |
|
|
{
|
740 |
|
|
0x03000000, /* sethi %hi(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
|
741 |
|
|
0x82106000, /* or %g1, %lo(_GLOBAL_OFFSET_TABLE_+f@got), %g1 */
|
742 |
|
|
0xc2004000, /* ld [ %g1 ], %g1 */
|
743 |
|
|
0x81c04000, /* jmp %g1 */
|
744 |
|
|
0x01000000, /* nop */
|
745 |
|
|
0x03000000, /* sethi %hi(f@pltindex), %g1 */
|
746 |
|
|
0x10800000, /* b _PLT_resolve */
|
747 |
|
|
0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
|
748 |
|
|
};
|
749 |
|
|
|
750 |
|
|
/* The format of the first PLT entry in a VxWorks shared object. */
|
751 |
|
|
static const bfd_vma sparc_vxworks_shared_plt0_entry[] =
|
752 |
|
|
{
|
753 |
|
|
0xc405e008, /* ld [ %l7 + 8 ], %g2 */
|
754 |
|
|
0x81c08000, /* jmp %g2 */
|
755 |
|
|
0x01000000 /* nop */
|
756 |
|
|
};
|
757 |
|
|
|
758 |
|
|
/* The format of subsequent PLT entries. */
|
759 |
|
|
static const bfd_vma sparc_vxworks_shared_plt_entry[] =
|
760 |
|
|
{
|
761 |
|
|
0x03000000, /* sethi %hi(f@got), %g1 */
|
762 |
|
|
0x82106000, /* or %g1, %lo(f@got), %g1 */
|
763 |
|
|
0xc205c001, /* ld [ %l7 + %g1 ], %g1 */
|
764 |
|
|
0x81c04000, /* jmp %g1 */
|
765 |
|
|
0x01000000, /* nop */
|
766 |
|
|
0x03000000, /* sethi %hi(f@pltindex), %g1 */
|
767 |
|
|
0x10800000, /* b _PLT_resolve */
|
768 |
|
|
0x82106000 /* or %g1, %lo(f@pltindex), %g1 */
|
769 |
|
|
};
|
770 |
|
|
|
771 |
|
|
#define SPARC_ELF_PUT_WORD(htab, bfd, val, ptr) \
|
772 |
|
|
htab->put_word(bfd, val, ptr)
|
773 |
|
|
|
774 |
|
|
#define SPARC_ELF_R_INFO(htab, in_rel, index, type) \
|
775 |
|
|
htab->r_info(in_rel, index, type)
|
776 |
|
|
|
777 |
|
|
#define SPARC_ELF_R_SYMNDX(htab, r_info) \
|
778 |
|
|
htab->r_symndx(r_info)
|
779 |
|
|
|
780 |
|
|
#define SPARC_ELF_WORD_BYTES(htab) \
|
781 |
|
|
htab->bytes_per_word
|
782 |
|
|
|
783 |
|
|
#define SPARC_ELF_RELA_BYTES(htab) \
|
784 |
|
|
htab->bytes_per_rela
|
785 |
|
|
|
786 |
|
|
#define SPARC_ELF_DTPOFF_RELOC(htab) \
|
787 |
|
|
htab->dtpoff_reloc
|
788 |
|
|
|
789 |
|
|
#define SPARC_ELF_DTPMOD_RELOC(htab) \
|
790 |
|
|
htab->dtpmod_reloc
|
791 |
|
|
|
792 |
|
|
#define SPARC_ELF_TPOFF_RELOC(htab) \
|
793 |
|
|
htab->tpoff_reloc
|
794 |
|
|
|
795 |
|
|
#define SPARC_ELF_BUILD_PLT_ENTRY(htab, obfd, splt, off, max, r_off) \
|
796 |
|
|
htab->build_plt_entry (obfd, splt, off, max, r_off)
|
797 |
|
|
|
798 |
|
|
/* Create an entry in an SPARC ELF linker hash table. */
|
799 |
|
|
|
800 |
|
|
static struct bfd_hash_entry *
|
801 |
|
|
link_hash_newfunc (struct bfd_hash_entry *entry,
|
802 |
|
|
struct bfd_hash_table *table, const char *string)
|
803 |
|
|
{
|
804 |
|
|
/* Allocate the structure if it has not already been allocated by a
|
805 |
|
|
subclass. */
|
806 |
|
|
if (entry == NULL)
|
807 |
|
|
{
|
808 |
|
|
entry = bfd_hash_allocate (table,
|
809 |
|
|
sizeof (struct _bfd_sparc_elf_link_hash_entry));
|
810 |
|
|
if (entry == NULL)
|
811 |
|
|
return entry;
|
812 |
|
|
}
|
813 |
|
|
|
814 |
|
|
/* Call the allocation method of the superclass. */
|
815 |
|
|
entry = _bfd_elf_link_hash_newfunc (entry, table, string);
|
816 |
|
|
if (entry != NULL)
|
817 |
|
|
{
|
818 |
|
|
struct _bfd_sparc_elf_link_hash_entry *eh;
|
819 |
|
|
|
820 |
|
|
eh = (struct _bfd_sparc_elf_link_hash_entry *) entry;
|
821 |
|
|
eh->dyn_relocs = NULL;
|
822 |
|
|
eh->tls_type = GOT_UNKNOWN;
|
823 |
|
|
}
|
824 |
|
|
|
825 |
|
|
return entry;
|
826 |
|
|
}
|
827 |
|
|
|
828 |
|
|
/* The name of the dynamic interpreter. This is put in the .interp
|
829 |
|
|
section. */
|
830 |
|
|
|
831 |
|
|
#define ELF32_DYNAMIC_INTERPRETER "/usr/lib/ld.so.1"
|
832 |
|
|
#define ELF64_DYNAMIC_INTERPRETER "/usr/lib/sparcv9/ld.so.1"
|
833 |
|
|
|
834 |
|
|
/* Create a SPARC ELF linker hash table. */
|
835 |
|
|
|
836 |
|
|
struct bfd_link_hash_table *
|
837 |
|
|
_bfd_sparc_elf_link_hash_table_create (bfd *abfd)
|
838 |
|
|
{
|
839 |
|
|
struct _bfd_sparc_elf_link_hash_table *ret;
|
840 |
|
|
bfd_size_type amt = sizeof (struct _bfd_sparc_elf_link_hash_table);
|
841 |
|
|
|
842 |
|
|
ret = (struct _bfd_sparc_elf_link_hash_table *) bfd_zmalloc (amt);
|
843 |
|
|
if (ret == NULL)
|
844 |
|
|
return NULL;
|
845 |
|
|
|
846 |
|
|
if (ABI_64_P (abfd))
|
847 |
|
|
{
|
848 |
|
|
ret->put_word = sparc_put_word_64;
|
849 |
|
|
ret->r_info = sparc_elf_r_info_64;
|
850 |
|
|
ret->r_symndx = sparc_elf_r_symndx_64;
|
851 |
|
|
ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF64;
|
852 |
|
|
ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD64;
|
853 |
|
|
ret->tpoff_reloc = R_SPARC_TLS_TPOFF64;
|
854 |
|
|
ret->word_align_power = 3;
|
855 |
|
|
ret->align_power_max = 4;
|
856 |
|
|
ret->bytes_per_word = 8;
|
857 |
|
|
ret->bytes_per_rela = sizeof (Elf64_External_Rela);
|
858 |
|
|
ret->dynamic_interpreter = ELF64_DYNAMIC_INTERPRETER;
|
859 |
|
|
ret->dynamic_interpreter_size = sizeof ELF64_DYNAMIC_INTERPRETER;
|
860 |
|
|
}
|
861 |
|
|
else
|
862 |
|
|
{
|
863 |
|
|
ret->put_word = sparc_put_word_32;
|
864 |
|
|
ret->r_info = sparc_elf_r_info_32;
|
865 |
|
|
ret->r_symndx = sparc_elf_r_symndx_32;
|
866 |
|
|
ret->dtpoff_reloc = R_SPARC_TLS_DTPOFF32;
|
867 |
|
|
ret->dtpmod_reloc = R_SPARC_TLS_DTPMOD32;
|
868 |
|
|
ret->tpoff_reloc = R_SPARC_TLS_TPOFF32;
|
869 |
|
|
ret->word_align_power = 2;
|
870 |
|
|
ret->align_power_max = 3;
|
871 |
|
|
ret->bytes_per_word = 4;
|
872 |
|
|
ret->bytes_per_rela = sizeof (Elf32_External_Rela);
|
873 |
|
|
ret->dynamic_interpreter = ELF32_DYNAMIC_INTERPRETER;
|
874 |
|
|
ret->dynamic_interpreter_size = sizeof ELF32_DYNAMIC_INTERPRETER;
|
875 |
|
|
}
|
876 |
|
|
|
877 |
|
|
if (!_bfd_elf_link_hash_table_init (&ret->elf, abfd, link_hash_newfunc,
|
878 |
|
|
sizeof (struct _bfd_sparc_elf_link_hash_entry)))
|
879 |
|
|
{
|
880 |
|
|
free (ret);
|
881 |
|
|
return NULL;
|
882 |
|
|
}
|
883 |
|
|
|
884 |
|
|
return &ret->elf.root;
|
885 |
|
|
}
|
886 |
|
|
|
887 |
|
|
/* Create .got and .rela.got sections in DYNOBJ, and set up
|
888 |
|
|
shortcuts to them in our hash table. */
|
889 |
|
|
|
890 |
|
|
static bfd_boolean
|
891 |
|
|
create_got_section (bfd *dynobj, struct bfd_link_info *info)
|
892 |
|
|
{
|
893 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
894 |
|
|
|
895 |
|
|
if (! _bfd_elf_create_got_section (dynobj, info))
|
896 |
|
|
return FALSE;
|
897 |
|
|
|
898 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
899 |
|
|
htab->sgot = bfd_get_section_by_name (dynobj, ".got");
|
900 |
|
|
BFD_ASSERT (htab->sgot != NULL);
|
901 |
|
|
|
902 |
|
|
htab->srelgot = bfd_make_section_with_flags (dynobj, ".rela.got",
|
903 |
|
|
SEC_ALLOC
|
904 |
|
|
| SEC_LOAD
|
905 |
|
|
| SEC_HAS_CONTENTS
|
906 |
|
|
| SEC_IN_MEMORY
|
907 |
|
|
| SEC_LINKER_CREATED
|
908 |
|
|
| SEC_READONLY);
|
909 |
|
|
if (htab->srelgot == NULL
|
910 |
|
|
|| ! bfd_set_section_alignment (dynobj, htab->srelgot,
|
911 |
|
|
htab->word_align_power))
|
912 |
|
|
return FALSE;
|
913 |
|
|
|
914 |
|
|
if (htab->is_vxworks)
|
915 |
|
|
{
|
916 |
|
|
htab->sgotplt = bfd_get_section_by_name (dynobj, ".got.plt");
|
917 |
|
|
if (!htab->sgotplt)
|
918 |
|
|
return FALSE;
|
919 |
|
|
}
|
920 |
|
|
|
921 |
|
|
return TRUE;
|
922 |
|
|
}
|
923 |
|
|
|
924 |
|
|
/* Create .plt, .rela.plt, .got, .rela.got, .dynbss, and
|
925 |
|
|
.rela.bss sections in DYNOBJ, and set up shortcuts to them in our
|
926 |
|
|
hash table. */
|
927 |
|
|
|
928 |
|
|
bfd_boolean
|
929 |
|
|
_bfd_sparc_elf_create_dynamic_sections (bfd *dynobj,
|
930 |
|
|
struct bfd_link_info *info)
|
931 |
|
|
{
|
932 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
933 |
|
|
|
934 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
935 |
|
|
if (!htab->sgot && !create_got_section (dynobj, info))
|
936 |
|
|
return FALSE;
|
937 |
|
|
|
938 |
|
|
if (!_bfd_elf_create_dynamic_sections (dynobj, info))
|
939 |
|
|
return FALSE;
|
940 |
|
|
|
941 |
|
|
htab->splt = bfd_get_section_by_name (dynobj, ".plt");
|
942 |
|
|
htab->srelplt = bfd_get_section_by_name (dynobj, ".rela.plt");
|
943 |
|
|
htab->sdynbss = bfd_get_section_by_name (dynobj, ".dynbss");
|
944 |
|
|
if (!info->shared)
|
945 |
|
|
htab->srelbss = bfd_get_section_by_name (dynobj, ".rela.bss");
|
946 |
|
|
|
947 |
|
|
if (htab->is_vxworks)
|
948 |
|
|
{
|
949 |
|
|
if (!elf_vxworks_create_dynamic_sections (dynobj, info, &htab->srelplt2))
|
950 |
|
|
return FALSE;
|
951 |
|
|
if (info->shared)
|
952 |
|
|
{
|
953 |
|
|
htab->plt_header_size
|
954 |
|
|
= 4 * ARRAY_SIZE (sparc_vxworks_shared_plt0_entry);
|
955 |
|
|
htab->plt_entry_size
|
956 |
|
|
= 4 * ARRAY_SIZE (sparc_vxworks_shared_plt_entry);
|
957 |
|
|
}
|
958 |
|
|
else
|
959 |
|
|
{
|
960 |
|
|
htab->plt_header_size
|
961 |
|
|
= 4 * ARRAY_SIZE (sparc_vxworks_exec_plt0_entry);
|
962 |
|
|
htab->plt_entry_size
|
963 |
|
|
= 4 * ARRAY_SIZE (sparc_vxworks_exec_plt_entry);
|
964 |
|
|
}
|
965 |
|
|
}
|
966 |
|
|
else
|
967 |
|
|
{
|
968 |
|
|
if (ABI_64_P (dynobj))
|
969 |
|
|
{
|
970 |
|
|
htab->build_plt_entry = sparc64_plt_entry_build;
|
971 |
|
|
htab->plt_header_size = PLT64_HEADER_SIZE;
|
972 |
|
|
htab->plt_entry_size = PLT64_ENTRY_SIZE;
|
973 |
|
|
}
|
974 |
|
|
else
|
975 |
|
|
{
|
976 |
|
|
htab->build_plt_entry = sparc32_plt_entry_build;
|
977 |
|
|
htab->plt_header_size = PLT32_HEADER_SIZE;
|
978 |
|
|
htab->plt_entry_size = PLT32_ENTRY_SIZE;
|
979 |
|
|
}
|
980 |
|
|
}
|
981 |
|
|
|
982 |
|
|
if (!htab->splt || !htab->srelplt || !htab->sdynbss
|
983 |
|
|
|| (!info->shared && !htab->srelbss))
|
984 |
|
|
abort ();
|
985 |
|
|
|
986 |
|
|
return TRUE;
|
987 |
|
|
}
|
988 |
|
|
|
989 |
|
|
/* Copy the extra info we tack onto an elf_link_hash_entry. */
|
990 |
|
|
|
991 |
|
|
void
|
992 |
|
|
_bfd_sparc_elf_copy_indirect_symbol (struct bfd_link_info *info,
|
993 |
|
|
struct elf_link_hash_entry *dir,
|
994 |
|
|
struct elf_link_hash_entry *ind)
|
995 |
|
|
{
|
996 |
|
|
struct _bfd_sparc_elf_link_hash_entry *edir, *eind;
|
997 |
|
|
|
998 |
|
|
edir = (struct _bfd_sparc_elf_link_hash_entry *) dir;
|
999 |
|
|
eind = (struct _bfd_sparc_elf_link_hash_entry *) ind;
|
1000 |
|
|
|
1001 |
|
|
if (eind->dyn_relocs != NULL)
|
1002 |
|
|
{
|
1003 |
|
|
if (edir->dyn_relocs != NULL)
|
1004 |
|
|
{
|
1005 |
|
|
struct _bfd_sparc_elf_dyn_relocs **pp;
|
1006 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
1007 |
|
|
|
1008 |
|
|
/* Add reloc counts against the indirect sym to the direct sym
|
1009 |
|
|
list. Merge any entries against the same section. */
|
1010 |
|
|
for (pp = &eind->dyn_relocs; (p = *pp) != NULL; )
|
1011 |
|
|
{
|
1012 |
|
|
struct _bfd_sparc_elf_dyn_relocs *q;
|
1013 |
|
|
|
1014 |
|
|
for (q = edir->dyn_relocs; q != NULL; q = q->next)
|
1015 |
|
|
if (q->sec == p->sec)
|
1016 |
|
|
{
|
1017 |
|
|
q->pc_count += p->pc_count;
|
1018 |
|
|
q->count += p->count;
|
1019 |
|
|
*pp = p->next;
|
1020 |
|
|
break;
|
1021 |
|
|
}
|
1022 |
|
|
if (q == NULL)
|
1023 |
|
|
pp = &p->next;
|
1024 |
|
|
}
|
1025 |
|
|
*pp = edir->dyn_relocs;
|
1026 |
|
|
}
|
1027 |
|
|
|
1028 |
|
|
edir->dyn_relocs = eind->dyn_relocs;
|
1029 |
|
|
eind->dyn_relocs = NULL;
|
1030 |
|
|
}
|
1031 |
|
|
|
1032 |
|
|
if (ind->root.type == bfd_link_hash_indirect
|
1033 |
|
|
&& dir->got.refcount <= 0)
|
1034 |
|
|
{
|
1035 |
|
|
edir->tls_type = eind->tls_type;
|
1036 |
|
|
eind->tls_type = GOT_UNKNOWN;
|
1037 |
|
|
}
|
1038 |
|
|
_bfd_elf_link_hash_copy_indirect (info, dir, ind);
|
1039 |
|
|
}
|
1040 |
|
|
|
1041 |
|
|
static int
|
1042 |
|
|
sparc_elf_tls_transition (struct bfd_link_info *info, bfd *abfd,
|
1043 |
|
|
int r_type, int is_local)
|
1044 |
|
|
{
|
1045 |
|
|
if (! ABI_64_P (abfd)
|
1046 |
|
|
&& r_type == R_SPARC_TLS_GD_HI22
|
1047 |
|
|
&& ! _bfd_sparc_elf_tdata (abfd)->has_tlsgd)
|
1048 |
|
|
r_type = R_SPARC_REV32;
|
1049 |
|
|
|
1050 |
|
|
if (info->shared)
|
1051 |
|
|
return r_type;
|
1052 |
|
|
|
1053 |
|
|
switch (r_type)
|
1054 |
|
|
{
|
1055 |
|
|
case R_SPARC_TLS_GD_HI22:
|
1056 |
|
|
if (is_local)
|
1057 |
|
|
return R_SPARC_TLS_LE_HIX22;
|
1058 |
|
|
return R_SPARC_TLS_IE_HI22;
|
1059 |
|
|
case R_SPARC_TLS_GD_LO10:
|
1060 |
|
|
if (is_local)
|
1061 |
|
|
return R_SPARC_TLS_LE_LOX10;
|
1062 |
|
|
return R_SPARC_TLS_IE_LO10;
|
1063 |
|
|
case R_SPARC_TLS_IE_HI22:
|
1064 |
|
|
if (is_local)
|
1065 |
|
|
return R_SPARC_TLS_LE_HIX22;
|
1066 |
|
|
return r_type;
|
1067 |
|
|
case R_SPARC_TLS_IE_LO10:
|
1068 |
|
|
if (is_local)
|
1069 |
|
|
return R_SPARC_TLS_LE_LOX10;
|
1070 |
|
|
return r_type;
|
1071 |
|
|
case R_SPARC_TLS_LDM_HI22:
|
1072 |
|
|
return R_SPARC_TLS_LE_HIX22;
|
1073 |
|
|
case R_SPARC_TLS_LDM_LO10:
|
1074 |
|
|
return R_SPARC_TLS_LE_LOX10;
|
1075 |
|
|
}
|
1076 |
|
|
|
1077 |
|
|
return r_type;
|
1078 |
|
|
}
|
1079 |
|
|
|
1080 |
|
|
/* Look through the relocs for a section during the first phase, and
|
1081 |
|
|
allocate space in the global offset table or procedure linkage
|
1082 |
|
|
table. */
|
1083 |
|
|
|
1084 |
|
|
bfd_boolean
|
1085 |
|
|
_bfd_sparc_elf_check_relocs (bfd *abfd, struct bfd_link_info *info,
|
1086 |
|
|
asection *sec, const Elf_Internal_Rela *relocs)
|
1087 |
|
|
{
|
1088 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
1089 |
|
|
Elf_Internal_Shdr *symtab_hdr;
|
1090 |
|
|
struct elf_link_hash_entry **sym_hashes;
|
1091 |
|
|
bfd_vma *local_got_offsets;
|
1092 |
|
|
const Elf_Internal_Rela *rel;
|
1093 |
|
|
const Elf_Internal_Rela *rel_end;
|
1094 |
|
|
asection *sreloc;
|
1095 |
|
|
int num_relocs;
|
1096 |
|
|
bfd_boolean checked_tlsgd = FALSE;
|
1097 |
|
|
|
1098 |
|
|
if (info->relocatable)
|
1099 |
|
|
return TRUE;
|
1100 |
|
|
|
1101 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
1102 |
|
|
symtab_hdr = &elf_symtab_hdr (abfd);
|
1103 |
|
|
sym_hashes = elf_sym_hashes (abfd);
|
1104 |
|
|
local_got_offsets = elf_local_got_offsets (abfd);
|
1105 |
|
|
|
1106 |
|
|
sreloc = NULL;
|
1107 |
|
|
|
1108 |
|
|
if (ABI_64_P (abfd))
|
1109 |
|
|
num_relocs = NUM_SHDR_ENTRIES (& elf_section_data (sec)->rel_hdr);
|
1110 |
|
|
else
|
1111 |
|
|
num_relocs = sec->reloc_count;
|
1112 |
|
|
|
1113 |
|
|
BFD_ASSERT (is_sparc_elf (abfd) || num_relocs == 0);
|
1114 |
|
|
|
1115 |
|
|
rel_end = relocs + num_relocs;
|
1116 |
|
|
for (rel = relocs; rel < rel_end; rel++)
|
1117 |
|
|
{
|
1118 |
|
|
unsigned int r_type;
|
1119 |
|
|
unsigned long r_symndx;
|
1120 |
|
|
struct elf_link_hash_entry *h;
|
1121 |
|
|
|
1122 |
|
|
r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
|
1123 |
|
|
r_type = SPARC_ELF_R_TYPE (rel->r_info);
|
1124 |
|
|
|
1125 |
|
|
if (r_symndx >= NUM_SHDR_ENTRIES (symtab_hdr))
|
1126 |
|
|
{
|
1127 |
|
|
(*_bfd_error_handler) (_("%B: bad symbol index: %d"),
|
1128 |
|
|
abfd, r_symndx);
|
1129 |
|
|
return FALSE;
|
1130 |
|
|
}
|
1131 |
|
|
|
1132 |
|
|
if (r_symndx < symtab_hdr->sh_info)
|
1133 |
|
|
h = NULL;
|
1134 |
|
|
else
|
1135 |
|
|
{
|
1136 |
|
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
1137 |
|
|
while (h->root.type == bfd_link_hash_indirect
|
1138 |
|
|
|| h->root.type == bfd_link_hash_warning)
|
1139 |
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
1140 |
|
|
}
|
1141 |
|
|
|
1142 |
|
|
/* Compatibility with old R_SPARC_REV32 reloc conflicting
|
1143 |
|
|
with R_SPARC_TLS_GD_HI22. */
|
1144 |
|
|
if (! ABI_64_P (abfd) && ! checked_tlsgd)
|
1145 |
|
|
switch (r_type)
|
1146 |
|
|
{
|
1147 |
|
|
case R_SPARC_TLS_GD_HI22:
|
1148 |
|
|
{
|
1149 |
|
|
const Elf_Internal_Rela *relt;
|
1150 |
|
|
|
1151 |
|
|
for (relt = rel + 1; relt < rel_end; relt++)
|
1152 |
|
|
if (ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_LO10
|
1153 |
|
|
|| ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_ADD
|
1154 |
|
|
|| ELF32_R_TYPE (relt->r_info) == R_SPARC_TLS_GD_CALL)
|
1155 |
|
|
break;
|
1156 |
|
|
checked_tlsgd = TRUE;
|
1157 |
|
|
_bfd_sparc_elf_tdata (abfd)->has_tlsgd = relt < rel_end;
|
1158 |
|
|
}
|
1159 |
|
|
break;
|
1160 |
|
|
case R_SPARC_TLS_GD_LO10:
|
1161 |
|
|
case R_SPARC_TLS_GD_ADD:
|
1162 |
|
|
case R_SPARC_TLS_GD_CALL:
|
1163 |
|
|
checked_tlsgd = TRUE;
|
1164 |
|
|
_bfd_sparc_elf_tdata (abfd)->has_tlsgd = TRUE;
|
1165 |
|
|
break;
|
1166 |
|
|
}
|
1167 |
|
|
|
1168 |
|
|
r_type = sparc_elf_tls_transition (info, abfd, r_type, h == NULL);
|
1169 |
|
|
switch (r_type)
|
1170 |
|
|
{
|
1171 |
|
|
case R_SPARC_TLS_LDM_HI22:
|
1172 |
|
|
case R_SPARC_TLS_LDM_LO10:
|
1173 |
|
|
htab->tls_ldm_got.refcount += 1;
|
1174 |
|
|
break;
|
1175 |
|
|
|
1176 |
|
|
case R_SPARC_TLS_LE_HIX22:
|
1177 |
|
|
case R_SPARC_TLS_LE_LOX10:
|
1178 |
|
|
if (info->shared)
|
1179 |
|
|
goto r_sparc_plt32;
|
1180 |
|
|
break;
|
1181 |
|
|
|
1182 |
|
|
case R_SPARC_TLS_IE_HI22:
|
1183 |
|
|
case R_SPARC_TLS_IE_LO10:
|
1184 |
|
|
if (info->shared)
|
1185 |
|
|
info->flags |= DF_STATIC_TLS;
|
1186 |
|
|
/* Fall through */
|
1187 |
|
|
|
1188 |
|
|
case R_SPARC_GOT10:
|
1189 |
|
|
case R_SPARC_GOT13:
|
1190 |
|
|
case R_SPARC_GOT22:
|
1191 |
|
|
case R_SPARC_GOTDATA_HIX22:
|
1192 |
|
|
case R_SPARC_GOTDATA_LOX10:
|
1193 |
|
|
case R_SPARC_GOTDATA_OP_HIX22:
|
1194 |
|
|
case R_SPARC_GOTDATA_OP_LOX10:
|
1195 |
|
|
case R_SPARC_TLS_GD_HI22:
|
1196 |
|
|
case R_SPARC_TLS_GD_LO10:
|
1197 |
|
|
/* This symbol requires a global offset table entry. */
|
1198 |
|
|
{
|
1199 |
|
|
int tls_type, old_tls_type;
|
1200 |
|
|
|
1201 |
|
|
switch (r_type)
|
1202 |
|
|
{
|
1203 |
|
|
default:
|
1204 |
|
|
case R_SPARC_GOT10:
|
1205 |
|
|
case R_SPARC_GOT13:
|
1206 |
|
|
case R_SPARC_GOT22:
|
1207 |
|
|
case R_SPARC_GOTDATA_HIX22:
|
1208 |
|
|
case R_SPARC_GOTDATA_LOX10:
|
1209 |
|
|
case R_SPARC_GOTDATA_OP_HIX22:
|
1210 |
|
|
case R_SPARC_GOTDATA_OP_LOX10:
|
1211 |
|
|
tls_type = GOT_NORMAL;
|
1212 |
|
|
break;
|
1213 |
|
|
case R_SPARC_TLS_GD_HI22:
|
1214 |
|
|
case R_SPARC_TLS_GD_LO10:
|
1215 |
|
|
tls_type = GOT_TLS_GD;
|
1216 |
|
|
break;
|
1217 |
|
|
case R_SPARC_TLS_IE_HI22:
|
1218 |
|
|
case R_SPARC_TLS_IE_LO10:
|
1219 |
|
|
tls_type = GOT_TLS_IE;
|
1220 |
|
|
break;
|
1221 |
|
|
}
|
1222 |
|
|
|
1223 |
|
|
if (h != NULL)
|
1224 |
|
|
{
|
1225 |
|
|
h->got.refcount += 1;
|
1226 |
|
|
old_tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
1227 |
|
|
}
|
1228 |
|
|
else
|
1229 |
|
|
{
|
1230 |
|
|
bfd_signed_vma *local_got_refcounts;
|
1231 |
|
|
|
1232 |
|
|
/* This is a global offset table entry for a local symbol. */
|
1233 |
|
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
1234 |
|
|
if (local_got_refcounts == NULL)
|
1235 |
|
|
{
|
1236 |
|
|
bfd_size_type size;
|
1237 |
|
|
|
1238 |
|
|
size = symtab_hdr->sh_info;
|
1239 |
|
|
size *= (sizeof (bfd_signed_vma) + sizeof(char));
|
1240 |
|
|
local_got_refcounts = ((bfd_signed_vma *)
|
1241 |
|
|
bfd_zalloc (abfd, size));
|
1242 |
|
|
if (local_got_refcounts == NULL)
|
1243 |
|
|
return FALSE;
|
1244 |
|
|
elf_local_got_refcounts (abfd) = local_got_refcounts;
|
1245 |
|
|
_bfd_sparc_elf_local_got_tls_type (abfd)
|
1246 |
|
|
= (char *) (local_got_refcounts + symtab_hdr->sh_info);
|
1247 |
|
|
}
|
1248 |
|
|
local_got_refcounts[r_symndx] += 1;
|
1249 |
|
|
old_tls_type = _bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx];
|
1250 |
|
|
}
|
1251 |
|
|
|
1252 |
|
|
/* If a TLS symbol is accessed using IE at least once,
|
1253 |
|
|
there is no point to use dynamic model for it. */
|
1254 |
|
|
if (old_tls_type != tls_type && old_tls_type != GOT_UNKNOWN
|
1255 |
|
|
&& (old_tls_type != GOT_TLS_GD
|
1256 |
|
|
|| tls_type != GOT_TLS_IE))
|
1257 |
|
|
{
|
1258 |
|
|
if (old_tls_type == GOT_TLS_IE && tls_type == GOT_TLS_GD)
|
1259 |
|
|
tls_type = old_tls_type;
|
1260 |
|
|
else
|
1261 |
|
|
{
|
1262 |
|
|
(*_bfd_error_handler)
|
1263 |
|
|
(_("%B: `%s' accessed both as normal and thread local symbol"),
|
1264 |
|
|
abfd, h ? h->root.root.string : "<local>");
|
1265 |
|
|
return FALSE;
|
1266 |
|
|
}
|
1267 |
|
|
}
|
1268 |
|
|
|
1269 |
|
|
if (old_tls_type != tls_type)
|
1270 |
|
|
{
|
1271 |
|
|
if (h != NULL)
|
1272 |
|
|
_bfd_sparc_elf_hash_entry (h)->tls_type = tls_type;
|
1273 |
|
|
else
|
1274 |
|
|
_bfd_sparc_elf_local_got_tls_type (abfd) [r_symndx] = tls_type;
|
1275 |
|
|
}
|
1276 |
|
|
}
|
1277 |
|
|
|
1278 |
|
|
if (htab->sgot == NULL)
|
1279 |
|
|
{
|
1280 |
|
|
if (htab->elf.dynobj == NULL)
|
1281 |
|
|
htab->elf.dynobj = abfd;
|
1282 |
|
|
if (!create_got_section (htab->elf.dynobj, info))
|
1283 |
|
|
return FALSE;
|
1284 |
|
|
}
|
1285 |
|
|
break;
|
1286 |
|
|
|
1287 |
|
|
case R_SPARC_TLS_GD_CALL:
|
1288 |
|
|
case R_SPARC_TLS_LDM_CALL:
|
1289 |
|
|
if (info->shared)
|
1290 |
|
|
{
|
1291 |
|
|
/* These are basically R_SPARC_TLS_WPLT30 relocs against
|
1292 |
|
|
__tls_get_addr. */
|
1293 |
|
|
struct bfd_link_hash_entry *bh = NULL;
|
1294 |
|
|
if (! _bfd_generic_link_add_one_symbol (info, abfd,
|
1295 |
|
|
"__tls_get_addr", 0,
|
1296 |
|
|
bfd_und_section_ptr, 0,
|
1297 |
|
|
NULL, FALSE, FALSE,
|
1298 |
|
|
&bh))
|
1299 |
|
|
return FALSE;
|
1300 |
|
|
h = (struct elf_link_hash_entry *) bh;
|
1301 |
|
|
}
|
1302 |
|
|
else
|
1303 |
|
|
break;
|
1304 |
|
|
/* Fall through */
|
1305 |
|
|
|
1306 |
|
|
case R_SPARC_PLT32:
|
1307 |
|
|
case R_SPARC_WPLT30:
|
1308 |
|
|
case R_SPARC_HIPLT22:
|
1309 |
|
|
case R_SPARC_LOPLT10:
|
1310 |
|
|
case R_SPARC_PCPLT32:
|
1311 |
|
|
case R_SPARC_PCPLT22:
|
1312 |
|
|
case R_SPARC_PCPLT10:
|
1313 |
|
|
case R_SPARC_PLT64:
|
1314 |
|
|
/* This symbol requires a procedure linkage table entry. We
|
1315 |
|
|
actually build the entry in adjust_dynamic_symbol,
|
1316 |
|
|
because this might be a case of linking PIC code without
|
1317 |
|
|
linking in any dynamic objects, in which case we don't
|
1318 |
|
|
need to generate a procedure linkage table after all. */
|
1319 |
|
|
|
1320 |
|
|
if (h == NULL)
|
1321 |
|
|
{
|
1322 |
|
|
if (! ABI_64_P (abfd))
|
1323 |
|
|
{
|
1324 |
|
|
/* The Solaris native assembler will generate a WPLT30
|
1325 |
|
|
reloc for a local symbol if you assemble a call from
|
1326 |
|
|
one section to another when using -K pic. We treat
|
1327 |
|
|
it as WDISP30. */
|
1328 |
|
|
if (ELF32_R_TYPE (rel->r_info) == R_SPARC_PLT32)
|
1329 |
|
|
goto r_sparc_plt32;
|
1330 |
|
|
break;
|
1331 |
|
|
}
|
1332 |
|
|
|
1333 |
|
|
/* It does not make sense to have a procedure linkage
|
1334 |
|
|
table entry for a local symbol. */
|
1335 |
|
|
bfd_set_error (bfd_error_bad_value);
|
1336 |
|
|
return FALSE;
|
1337 |
|
|
}
|
1338 |
|
|
|
1339 |
|
|
h->needs_plt = 1;
|
1340 |
|
|
|
1341 |
|
|
{
|
1342 |
|
|
int this_r_type;
|
1343 |
|
|
|
1344 |
|
|
this_r_type = SPARC_ELF_R_TYPE (rel->r_info);
|
1345 |
|
|
if (this_r_type == R_SPARC_PLT32
|
1346 |
|
|
|| this_r_type == R_SPARC_PLT64)
|
1347 |
|
|
goto r_sparc_plt32;
|
1348 |
|
|
}
|
1349 |
|
|
h->plt.refcount += 1;
|
1350 |
|
|
break;
|
1351 |
|
|
|
1352 |
|
|
case R_SPARC_PC10:
|
1353 |
|
|
case R_SPARC_PC22:
|
1354 |
|
|
case R_SPARC_PC_HH22:
|
1355 |
|
|
case R_SPARC_PC_HM10:
|
1356 |
|
|
case R_SPARC_PC_LM22:
|
1357 |
|
|
if (h != NULL)
|
1358 |
|
|
h->non_got_ref = 1;
|
1359 |
|
|
|
1360 |
|
|
if (h != NULL
|
1361 |
|
|
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
1362 |
|
|
break;
|
1363 |
|
|
/* Fall through. */
|
1364 |
|
|
|
1365 |
|
|
case R_SPARC_DISP8:
|
1366 |
|
|
case R_SPARC_DISP16:
|
1367 |
|
|
case R_SPARC_DISP32:
|
1368 |
|
|
case R_SPARC_DISP64:
|
1369 |
|
|
case R_SPARC_WDISP30:
|
1370 |
|
|
case R_SPARC_WDISP22:
|
1371 |
|
|
case R_SPARC_WDISP19:
|
1372 |
|
|
case R_SPARC_WDISP16:
|
1373 |
|
|
case R_SPARC_8:
|
1374 |
|
|
case R_SPARC_16:
|
1375 |
|
|
case R_SPARC_32:
|
1376 |
|
|
case R_SPARC_HI22:
|
1377 |
|
|
case R_SPARC_22:
|
1378 |
|
|
case R_SPARC_13:
|
1379 |
|
|
case R_SPARC_LO10:
|
1380 |
|
|
case R_SPARC_UA16:
|
1381 |
|
|
case R_SPARC_UA32:
|
1382 |
|
|
case R_SPARC_10:
|
1383 |
|
|
case R_SPARC_11:
|
1384 |
|
|
case R_SPARC_64:
|
1385 |
|
|
case R_SPARC_OLO10:
|
1386 |
|
|
case R_SPARC_HH22:
|
1387 |
|
|
case R_SPARC_HM10:
|
1388 |
|
|
case R_SPARC_LM22:
|
1389 |
|
|
case R_SPARC_7:
|
1390 |
|
|
case R_SPARC_5:
|
1391 |
|
|
case R_SPARC_6:
|
1392 |
|
|
case R_SPARC_HIX22:
|
1393 |
|
|
case R_SPARC_LOX10:
|
1394 |
|
|
case R_SPARC_H44:
|
1395 |
|
|
case R_SPARC_M44:
|
1396 |
|
|
case R_SPARC_L44:
|
1397 |
|
|
case R_SPARC_UA64:
|
1398 |
|
|
if (h != NULL)
|
1399 |
|
|
h->non_got_ref = 1;
|
1400 |
|
|
|
1401 |
|
|
r_sparc_plt32:
|
1402 |
|
|
if (h != NULL && !info->shared)
|
1403 |
|
|
{
|
1404 |
|
|
/* We may need a .plt entry if the function this reloc
|
1405 |
|
|
refers to is in a shared lib. */
|
1406 |
|
|
h->plt.refcount += 1;
|
1407 |
|
|
}
|
1408 |
|
|
|
1409 |
|
|
/* If we are creating a shared library, and this is a reloc
|
1410 |
|
|
against a global symbol, or a non PC relative reloc
|
1411 |
|
|
against a local symbol, then we need to copy the reloc
|
1412 |
|
|
into the shared library. However, if we are linking with
|
1413 |
|
|
-Bsymbolic, we do not need to copy a reloc against a
|
1414 |
|
|
global symbol which is defined in an object we are
|
1415 |
|
|
including in the link (i.e., DEF_REGULAR is set). At
|
1416 |
|
|
this point we have not seen all the input files, so it is
|
1417 |
|
|
possible that DEF_REGULAR is not set now but will be set
|
1418 |
|
|
later (it is never cleared). In case of a weak definition,
|
1419 |
|
|
DEF_REGULAR may be cleared later by a strong definition in
|
1420 |
|
|
a shared library. We account for that possibility below by
|
1421 |
|
|
storing information in the relocs_copied field of the hash
|
1422 |
|
|
table entry. A similar situation occurs when creating
|
1423 |
|
|
shared libraries and symbol visibility changes render the
|
1424 |
|
|
symbol local.
|
1425 |
|
|
|
1426 |
|
|
If on the other hand, we are creating an executable, we
|
1427 |
|
|
may need to keep relocations for symbols satisfied by a
|
1428 |
|
|
dynamic library if we manage to avoid copy relocs for the
|
1429 |
|
|
symbol. */
|
1430 |
|
|
if ((info->shared
|
1431 |
|
|
&& (sec->flags & SEC_ALLOC) != 0
|
1432 |
|
|
&& (! _bfd_sparc_elf_howto_table[r_type].pc_relative
|
1433 |
|
|
|| (h != NULL
|
1434 |
|
|
&& (! info->symbolic
|
1435 |
|
|
|| h->root.type == bfd_link_hash_defweak
|
1436 |
|
|
|| !h->def_regular))))
|
1437 |
|
|
|| (!info->shared
|
1438 |
|
|
&& (sec->flags & SEC_ALLOC) != 0
|
1439 |
|
|
&& h != NULL
|
1440 |
|
|
&& (h->root.type == bfd_link_hash_defweak
|
1441 |
|
|
|| !h->def_regular)))
|
1442 |
|
|
{
|
1443 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
1444 |
|
|
struct _bfd_sparc_elf_dyn_relocs **head;
|
1445 |
|
|
|
1446 |
|
|
/* When creating a shared object, we must copy these
|
1447 |
|
|
relocs into the output file. We create a reloc
|
1448 |
|
|
section in dynobj and make room for the reloc. */
|
1449 |
|
|
if (sreloc == NULL)
|
1450 |
|
|
{
|
1451 |
|
|
const char *name;
|
1452 |
|
|
bfd *dynobj;
|
1453 |
|
|
|
1454 |
|
|
name = (bfd_elf_string_from_elf_section
|
1455 |
|
|
(abfd,
|
1456 |
|
|
elf_elfheader (abfd)->e_shstrndx,
|
1457 |
|
|
elf_section_data (sec)->rel_hdr.sh_name));
|
1458 |
|
|
if (name == NULL)
|
1459 |
|
|
return FALSE;
|
1460 |
|
|
|
1461 |
|
|
BFD_ASSERT (CONST_STRNEQ (name, ".rela")
|
1462 |
|
|
&& strcmp (bfd_get_section_name (abfd, sec),
|
1463 |
|
|
name + 5) == 0);
|
1464 |
|
|
|
1465 |
|
|
if (htab->elf.dynobj == NULL)
|
1466 |
|
|
htab->elf.dynobj = abfd;
|
1467 |
|
|
dynobj = htab->elf.dynobj;
|
1468 |
|
|
|
1469 |
|
|
sreloc = bfd_get_section_by_name (dynobj, name);
|
1470 |
|
|
if (sreloc == NULL)
|
1471 |
|
|
{
|
1472 |
|
|
flagword flags;
|
1473 |
|
|
|
1474 |
|
|
flags = (SEC_HAS_CONTENTS | SEC_READONLY
|
1475 |
|
|
| SEC_IN_MEMORY | SEC_LINKER_CREATED);
|
1476 |
|
|
if ((sec->flags & SEC_ALLOC) != 0)
|
1477 |
|
|
flags |= SEC_ALLOC | SEC_LOAD;
|
1478 |
|
|
sreloc = bfd_make_section_with_flags (dynobj,
|
1479 |
|
|
name,
|
1480 |
|
|
flags);
|
1481 |
|
|
if (sreloc == NULL
|
1482 |
|
|
|| ! bfd_set_section_alignment (dynobj, sreloc,
|
1483 |
|
|
htab->word_align_power))
|
1484 |
|
|
return FALSE;
|
1485 |
|
|
}
|
1486 |
|
|
elf_section_data (sec)->sreloc = sreloc;
|
1487 |
|
|
}
|
1488 |
|
|
|
1489 |
|
|
/* If this is a global symbol, we count the number of
|
1490 |
|
|
relocations we need for this symbol. */
|
1491 |
|
|
if (h != NULL)
|
1492 |
|
|
head = &((struct _bfd_sparc_elf_link_hash_entry *) h)->dyn_relocs;
|
1493 |
|
|
else
|
1494 |
|
|
{
|
1495 |
|
|
/* Track dynamic relocs needed for local syms too.
|
1496 |
|
|
We really need local syms available to do this
|
1497 |
|
|
easily. Oh well. */
|
1498 |
|
|
|
1499 |
|
|
asection *s;
|
1500 |
|
|
void *vpp;
|
1501 |
|
|
|
1502 |
|
|
s = bfd_section_from_r_symndx (abfd, &htab->sym_sec,
|
1503 |
|
|
sec, r_symndx);
|
1504 |
|
|
if (s == NULL)
|
1505 |
|
|
return FALSE;
|
1506 |
|
|
|
1507 |
|
|
vpp = &elf_section_data (s)->local_dynrel;
|
1508 |
|
|
head = (struct _bfd_sparc_elf_dyn_relocs **) vpp;
|
1509 |
|
|
}
|
1510 |
|
|
|
1511 |
|
|
p = *head;
|
1512 |
|
|
if (p == NULL || p->sec != sec)
|
1513 |
|
|
{
|
1514 |
|
|
bfd_size_type amt = sizeof *p;
|
1515 |
|
|
p = ((struct _bfd_sparc_elf_dyn_relocs *)
|
1516 |
|
|
bfd_alloc (htab->elf.dynobj, amt));
|
1517 |
|
|
if (p == NULL)
|
1518 |
|
|
return FALSE;
|
1519 |
|
|
p->next = *head;
|
1520 |
|
|
*head = p;
|
1521 |
|
|
p->sec = sec;
|
1522 |
|
|
p->count = 0;
|
1523 |
|
|
p->pc_count = 0;
|
1524 |
|
|
}
|
1525 |
|
|
|
1526 |
|
|
p->count += 1;
|
1527 |
|
|
if (_bfd_sparc_elf_howto_table[r_type].pc_relative)
|
1528 |
|
|
p->pc_count += 1;
|
1529 |
|
|
}
|
1530 |
|
|
|
1531 |
|
|
break;
|
1532 |
|
|
|
1533 |
|
|
case R_SPARC_GNU_VTINHERIT:
|
1534 |
|
|
if (!bfd_elf_gc_record_vtinherit (abfd, sec, h, rel->r_offset))
|
1535 |
|
|
return FALSE;
|
1536 |
|
|
break;
|
1537 |
|
|
|
1538 |
|
|
case R_SPARC_GNU_VTENTRY:
|
1539 |
|
|
BFD_ASSERT (h != NULL);
|
1540 |
|
|
if (h != NULL
|
1541 |
|
|
&& !bfd_elf_gc_record_vtentry (abfd, sec, h, rel->r_addend))
|
1542 |
|
|
return FALSE;
|
1543 |
|
|
break;
|
1544 |
|
|
|
1545 |
|
|
case R_SPARC_REGISTER:
|
1546 |
|
|
/* Nothing to do. */
|
1547 |
|
|
break;
|
1548 |
|
|
|
1549 |
|
|
default:
|
1550 |
|
|
break;
|
1551 |
|
|
}
|
1552 |
|
|
}
|
1553 |
|
|
|
1554 |
|
|
return TRUE;
|
1555 |
|
|
}
|
1556 |
|
|
|
1557 |
|
|
asection *
|
1558 |
|
|
_bfd_sparc_elf_gc_mark_hook (asection *sec,
|
1559 |
|
|
struct bfd_link_info *info,
|
1560 |
|
|
Elf_Internal_Rela *rel,
|
1561 |
|
|
struct elf_link_hash_entry *h,
|
1562 |
|
|
Elf_Internal_Sym *sym)
|
1563 |
|
|
{
|
1564 |
|
|
if (h != NULL)
|
1565 |
|
|
switch (SPARC_ELF_R_TYPE (rel->r_info))
|
1566 |
|
|
{
|
1567 |
|
|
case R_SPARC_GNU_VTINHERIT:
|
1568 |
|
|
case R_SPARC_GNU_VTENTRY:
|
1569 |
|
|
return NULL;
|
1570 |
|
|
}
|
1571 |
|
|
|
1572 |
|
|
return _bfd_elf_gc_mark_hook (sec, info, rel, h, sym);
|
1573 |
|
|
}
|
1574 |
|
|
|
1575 |
|
|
/* Update the got entry reference counts for the section being removed. */
|
1576 |
|
|
bfd_boolean
|
1577 |
|
|
_bfd_sparc_elf_gc_sweep_hook (bfd *abfd, struct bfd_link_info *info,
|
1578 |
|
|
asection *sec, const Elf_Internal_Rela *relocs)
|
1579 |
|
|
{
|
1580 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
1581 |
|
|
Elf_Internal_Shdr *symtab_hdr;
|
1582 |
|
|
struct elf_link_hash_entry **sym_hashes;
|
1583 |
|
|
bfd_signed_vma *local_got_refcounts;
|
1584 |
|
|
const Elf_Internal_Rela *rel, *relend;
|
1585 |
|
|
|
1586 |
|
|
if (info->relocatable)
|
1587 |
|
|
return TRUE;
|
1588 |
|
|
|
1589 |
|
|
BFD_ASSERT (is_sparc_elf (abfd) || sec->reloc_count == 0);
|
1590 |
|
|
|
1591 |
|
|
elf_section_data (sec)->local_dynrel = NULL;
|
1592 |
|
|
|
1593 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
1594 |
|
|
symtab_hdr = &elf_symtab_hdr (abfd);
|
1595 |
|
|
sym_hashes = elf_sym_hashes (abfd);
|
1596 |
|
|
local_got_refcounts = elf_local_got_refcounts (abfd);
|
1597 |
|
|
|
1598 |
|
|
relend = relocs + sec->reloc_count;
|
1599 |
|
|
for (rel = relocs; rel < relend; rel++)
|
1600 |
|
|
{
|
1601 |
|
|
unsigned long r_symndx;
|
1602 |
|
|
unsigned int r_type;
|
1603 |
|
|
struct elf_link_hash_entry *h = NULL;
|
1604 |
|
|
|
1605 |
|
|
r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
|
1606 |
|
|
if (r_symndx >= symtab_hdr->sh_info)
|
1607 |
|
|
{
|
1608 |
|
|
struct _bfd_sparc_elf_link_hash_entry *eh;
|
1609 |
|
|
struct _bfd_sparc_elf_dyn_relocs **pp;
|
1610 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
1611 |
|
|
|
1612 |
|
|
h = sym_hashes[r_symndx - symtab_hdr->sh_info];
|
1613 |
|
|
while (h->root.type == bfd_link_hash_indirect
|
1614 |
|
|
|| h->root.type == bfd_link_hash_warning)
|
1615 |
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
1616 |
|
|
eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
|
1617 |
|
|
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; pp = &p->next)
|
1618 |
|
|
if (p->sec == sec)
|
1619 |
|
|
{
|
1620 |
|
|
/* Everything must go for SEC. */
|
1621 |
|
|
*pp = p->next;
|
1622 |
|
|
break;
|
1623 |
|
|
}
|
1624 |
|
|
}
|
1625 |
|
|
|
1626 |
|
|
r_type = SPARC_ELF_R_TYPE (rel->r_info);
|
1627 |
|
|
r_type = sparc_elf_tls_transition (info, abfd, r_type, h != NULL);
|
1628 |
|
|
switch (r_type)
|
1629 |
|
|
{
|
1630 |
|
|
case R_SPARC_TLS_LDM_HI22:
|
1631 |
|
|
case R_SPARC_TLS_LDM_LO10:
|
1632 |
|
|
if (_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount > 0)
|
1633 |
|
|
_bfd_sparc_elf_hash_table (info)->tls_ldm_got.refcount -= 1;
|
1634 |
|
|
break;
|
1635 |
|
|
|
1636 |
|
|
case R_SPARC_TLS_GD_HI22:
|
1637 |
|
|
case R_SPARC_TLS_GD_LO10:
|
1638 |
|
|
case R_SPARC_TLS_IE_HI22:
|
1639 |
|
|
case R_SPARC_TLS_IE_LO10:
|
1640 |
|
|
case R_SPARC_GOT10:
|
1641 |
|
|
case R_SPARC_GOT13:
|
1642 |
|
|
case R_SPARC_GOT22:
|
1643 |
|
|
case R_SPARC_GOTDATA_HIX22:
|
1644 |
|
|
case R_SPARC_GOTDATA_LOX10:
|
1645 |
|
|
case R_SPARC_GOTDATA_OP_HIX22:
|
1646 |
|
|
case R_SPARC_GOTDATA_OP_LOX10:
|
1647 |
|
|
if (h != NULL)
|
1648 |
|
|
{
|
1649 |
|
|
if (h->got.refcount > 0)
|
1650 |
|
|
h->got.refcount--;
|
1651 |
|
|
}
|
1652 |
|
|
else
|
1653 |
|
|
{
|
1654 |
|
|
if (local_got_refcounts[r_symndx] > 0)
|
1655 |
|
|
local_got_refcounts[r_symndx]--;
|
1656 |
|
|
}
|
1657 |
|
|
break;
|
1658 |
|
|
|
1659 |
|
|
case R_SPARC_PC10:
|
1660 |
|
|
case R_SPARC_PC22:
|
1661 |
|
|
case R_SPARC_PC_HH22:
|
1662 |
|
|
case R_SPARC_PC_HM10:
|
1663 |
|
|
case R_SPARC_PC_LM22:
|
1664 |
|
|
if (h != NULL
|
1665 |
|
|
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
1666 |
|
|
break;
|
1667 |
|
|
/* Fall through. */
|
1668 |
|
|
|
1669 |
|
|
case R_SPARC_DISP8:
|
1670 |
|
|
case R_SPARC_DISP16:
|
1671 |
|
|
case R_SPARC_DISP32:
|
1672 |
|
|
case R_SPARC_DISP64:
|
1673 |
|
|
case R_SPARC_WDISP30:
|
1674 |
|
|
case R_SPARC_WDISP22:
|
1675 |
|
|
case R_SPARC_WDISP19:
|
1676 |
|
|
case R_SPARC_WDISP16:
|
1677 |
|
|
case R_SPARC_8:
|
1678 |
|
|
case R_SPARC_16:
|
1679 |
|
|
case R_SPARC_32:
|
1680 |
|
|
case R_SPARC_HI22:
|
1681 |
|
|
case R_SPARC_22:
|
1682 |
|
|
case R_SPARC_13:
|
1683 |
|
|
case R_SPARC_LO10:
|
1684 |
|
|
case R_SPARC_UA16:
|
1685 |
|
|
case R_SPARC_UA32:
|
1686 |
|
|
case R_SPARC_PLT32:
|
1687 |
|
|
case R_SPARC_10:
|
1688 |
|
|
case R_SPARC_11:
|
1689 |
|
|
case R_SPARC_64:
|
1690 |
|
|
case R_SPARC_OLO10:
|
1691 |
|
|
case R_SPARC_HH22:
|
1692 |
|
|
case R_SPARC_HM10:
|
1693 |
|
|
case R_SPARC_LM22:
|
1694 |
|
|
case R_SPARC_7:
|
1695 |
|
|
case R_SPARC_5:
|
1696 |
|
|
case R_SPARC_6:
|
1697 |
|
|
case R_SPARC_HIX22:
|
1698 |
|
|
case R_SPARC_LOX10:
|
1699 |
|
|
case R_SPARC_H44:
|
1700 |
|
|
case R_SPARC_M44:
|
1701 |
|
|
case R_SPARC_L44:
|
1702 |
|
|
case R_SPARC_UA64:
|
1703 |
|
|
if (info->shared)
|
1704 |
|
|
break;
|
1705 |
|
|
/* Fall through. */
|
1706 |
|
|
|
1707 |
|
|
case R_SPARC_WPLT30:
|
1708 |
|
|
if (h != NULL)
|
1709 |
|
|
{
|
1710 |
|
|
if (h->plt.refcount > 0)
|
1711 |
|
|
h->plt.refcount--;
|
1712 |
|
|
}
|
1713 |
|
|
break;
|
1714 |
|
|
|
1715 |
|
|
default:
|
1716 |
|
|
break;
|
1717 |
|
|
}
|
1718 |
|
|
}
|
1719 |
|
|
|
1720 |
|
|
return TRUE;
|
1721 |
|
|
}
|
1722 |
|
|
|
1723 |
|
|
/* Adjust a symbol defined by a dynamic object and referenced by a
|
1724 |
|
|
regular object. The current definition is in some section of the
|
1725 |
|
|
dynamic object, but we're not including those sections. We have to
|
1726 |
|
|
change the definition to something the rest of the link can
|
1727 |
|
|
understand. */
|
1728 |
|
|
|
1729 |
|
|
bfd_boolean
|
1730 |
|
|
_bfd_sparc_elf_adjust_dynamic_symbol (struct bfd_link_info *info,
|
1731 |
|
|
struct elf_link_hash_entry *h)
|
1732 |
|
|
{
|
1733 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
1734 |
|
|
struct _bfd_sparc_elf_link_hash_entry * eh;
|
1735 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
1736 |
|
|
asection *s;
|
1737 |
|
|
|
1738 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
1739 |
|
|
|
1740 |
|
|
/* Make sure we know what is going on here. */
|
1741 |
|
|
BFD_ASSERT (htab->elf.dynobj != NULL
|
1742 |
|
|
&& (h->needs_plt
|
1743 |
|
|
|| h->u.weakdef != NULL
|
1744 |
|
|
|| (h->def_dynamic
|
1745 |
|
|
&& h->ref_regular
|
1746 |
|
|
&& !h->def_regular)));
|
1747 |
|
|
|
1748 |
|
|
/* If this is a function, put it in the procedure linkage table. We
|
1749 |
|
|
will fill in the contents of the procedure linkage table later
|
1750 |
|
|
(although we could actually do it here). The STT_NOTYPE
|
1751 |
|
|
condition is a hack specifically for the Oracle libraries
|
1752 |
|
|
delivered for Solaris; for some inexplicable reason, they define
|
1753 |
|
|
some of their functions as STT_NOTYPE when they really should be
|
1754 |
|
|
STT_FUNC. */
|
1755 |
|
|
if (h->type == STT_FUNC
|
1756 |
|
|
|| h->needs_plt
|
1757 |
|
|
|| (h->type == STT_NOTYPE
|
1758 |
|
|
&& (h->root.type == bfd_link_hash_defined
|
1759 |
|
|
|| h->root.type == bfd_link_hash_defweak)
|
1760 |
|
|
&& (h->root.u.def.section->flags & SEC_CODE) != 0))
|
1761 |
|
|
{
|
1762 |
|
|
if (h->plt.refcount <= 0
|
1763 |
|
|
|| (! info->shared
|
1764 |
|
|
&& !h->def_dynamic
|
1765 |
|
|
&& !h->ref_dynamic
|
1766 |
|
|
&& h->root.type != bfd_link_hash_undefweak
|
1767 |
|
|
&& h->root.type != bfd_link_hash_undefined))
|
1768 |
|
|
{
|
1769 |
|
|
/* This case can occur if we saw a WPLT30 reloc in an input
|
1770 |
|
|
file, but the symbol was never referred to by a dynamic
|
1771 |
|
|
object, or if all references were garbage collected. In
|
1772 |
|
|
such a case, we don't actually need to build a procedure
|
1773 |
|
|
linkage table, and we can just do a WDISP30 reloc instead. */
|
1774 |
|
|
h->plt.offset = (bfd_vma) -1;
|
1775 |
|
|
h->needs_plt = 0;
|
1776 |
|
|
}
|
1777 |
|
|
|
1778 |
|
|
return TRUE;
|
1779 |
|
|
}
|
1780 |
|
|
else
|
1781 |
|
|
h->plt.offset = (bfd_vma) -1;
|
1782 |
|
|
|
1783 |
|
|
/* If this is a weak symbol, and there is a real definition, the
|
1784 |
|
|
processor independent code will have arranged for us to see the
|
1785 |
|
|
real definition first, and we can just use the same value. */
|
1786 |
|
|
if (h->u.weakdef != NULL)
|
1787 |
|
|
{
|
1788 |
|
|
BFD_ASSERT (h->u.weakdef->root.type == bfd_link_hash_defined
|
1789 |
|
|
|| h->u.weakdef->root.type == bfd_link_hash_defweak);
|
1790 |
|
|
h->root.u.def.section = h->u.weakdef->root.u.def.section;
|
1791 |
|
|
h->root.u.def.value = h->u.weakdef->root.u.def.value;
|
1792 |
|
|
return TRUE;
|
1793 |
|
|
}
|
1794 |
|
|
|
1795 |
|
|
/* This is a reference to a symbol defined by a dynamic object which
|
1796 |
|
|
is not a function. */
|
1797 |
|
|
|
1798 |
|
|
/* If we are creating a shared library, we must presume that the
|
1799 |
|
|
only references to the symbol are via the global offset table.
|
1800 |
|
|
For such cases we need not do anything here; the relocations will
|
1801 |
|
|
be handled correctly by relocate_section. */
|
1802 |
|
|
if (info->shared)
|
1803 |
|
|
return TRUE;
|
1804 |
|
|
|
1805 |
|
|
/* If there are no references to this symbol that do not use the
|
1806 |
|
|
GOT, we don't need to generate a copy reloc. */
|
1807 |
|
|
if (!h->non_got_ref)
|
1808 |
|
|
return TRUE;
|
1809 |
|
|
|
1810 |
|
|
eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
|
1811 |
|
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
1812 |
|
|
{
|
1813 |
|
|
s = p->sec->output_section;
|
1814 |
|
|
if (s != NULL && (s->flags & SEC_READONLY) != 0)
|
1815 |
|
|
break;
|
1816 |
|
|
}
|
1817 |
|
|
|
1818 |
|
|
/* If we didn't find any dynamic relocs in read-only sections, then
|
1819 |
|
|
we'll be keeping the dynamic relocs and avoiding the copy reloc. */
|
1820 |
|
|
if (p == NULL)
|
1821 |
|
|
{
|
1822 |
|
|
h->non_got_ref = 0;
|
1823 |
|
|
return TRUE;
|
1824 |
|
|
}
|
1825 |
|
|
|
1826 |
|
|
if (h->size == 0)
|
1827 |
|
|
{
|
1828 |
|
|
(*_bfd_error_handler) (_("dynamic variable `%s' is zero size"),
|
1829 |
|
|
h->root.root.string);
|
1830 |
|
|
return TRUE;
|
1831 |
|
|
}
|
1832 |
|
|
|
1833 |
|
|
/* We must allocate the symbol in our .dynbss section, which will
|
1834 |
|
|
become part of the .bss section of the executable. There will be
|
1835 |
|
|
an entry for this symbol in the .dynsym section. The dynamic
|
1836 |
|
|
object will contain position independent code, so all references
|
1837 |
|
|
from the dynamic object to this symbol will go through the global
|
1838 |
|
|
offset table. The dynamic linker will use the .dynsym entry to
|
1839 |
|
|
determine the address it must put in the global offset table, so
|
1840 |
|
|
both the dynamic object and the regular object will refer to the
|
1841 |
|
|
same memory location for the variable. */
|
1842 |
|
|
|
1843 |
|
|
/* We must generate a R_SPARC_COPY reloc to tell the dynamic linker
|
1844 |
|
|
to copy the initial value out of the dynamic object and into the
|
1845 |
|
|
runtime process image. We need to remember the offset into the
|
1846 |
|
|
.rel.bss section we are going to use. */
|
1847 |
|
|
if ((h->root.u.def.section->flags & SEC_ALLOC) != 0)
|
1848 |
|
|
{
|
1849 |
|
|
htab->srelbss->size += SPARC_ELF_RELA_BYTES (htab);
|
1850 |
|
|
h->needs_copy = 1;
|
1851 |
|
|
}
|
1852 |
|
|
|
1853 |
|
|
s = htab->sdynbss;
|
1854 |
|
|
|
1855 |
|
|
return _bfd_elf_adjust_dynamic_copy (h, s);
|
1856 |
|
|
}
|
1857 |
|
|
|
1858 |
|
|
/* Allocate space in .plt, .got and associated reloc sections for
|
1859 |
|
|
dynamic relocs. */
|
1860 |
|
|
|
1861 |
|
|
static bfd_boolean
|
1862 |
|
|
allocate_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
|
1863 |
|
|
{
|
1864 |
|
|
struct bfd_link_info *info;
|
1865 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
1866 |
|
|
struct _bfd_sparc_elf_link_hash_entry *eh;
|
1867 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
1868 |
|
|
|
1869 |
|
|
if (h->root.type == bfd_link_hash_indirect)
|
1870 |
|
|
return TRUE;
|
1871 |
|
|
|
1872 |
|
|
if (h->root.type == bfd_link_hash_warning)
|
1873 |
|
|
/* When warning symbols are created, they **replace** the "real"
|
1874 |
|
|
entry in the hash table, thus we never get to see the real
|
1875 |
|
|
symbol in a hash traversal. So look at it now. */
|
1876 |
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
1877 |
|
|
|
1878 |
|
|
info = (struct bfd_link_info *) inf;
|
1879 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
1880 |
|
|
|
1881 |
|
|
if (htab->elf.dynamic_sections_created
|
1882 |
|
|
&& h->plt.refcount > 0)
|
1883 |
|
|
{
|
1884 |
|
|
/* Make sure this symbol is output as a dynamic symbol.
|
1885 |
|
|
Undefined weak syms won't yet be marked as dynamic. */
|
1886 |
|
|
if (h->dynindx == -1
|
1887 |
|
|
&& !h->forced_local)
|
1888 |
|
|
{
|
1889 |
|
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
1890 |
|
|
return FALSE;
|
1891 |
|
|
}
|
1892 |
|
|
|
1893 |
|
|
if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (1, info->shared, h))
|
1894 |
|
|
{
|
1895 |
|
|
asection *s = htab->splt;
|
1896 |
|
|
|
1897 |
|
|
/* Allocate room for the header. */
|
1898 |
|
|
if (s->size == 0)
|
1899 |
|
|
{
|
1900 |
|
|
s->size = htab->plt_header_size;
|
1901 |
|
|
|
1902 |
|
|
/* Allocate space for the .rela.plt.unloaded relocations. */
|
1903 |
|
|
if (htab->is_vxworks && !info->shared)
|
1904 |
|
|
htab->srelplt2->size = sizeof (Elf32_External_Rela) * 2;
|
1905 |
|
|
}
|
1906 |
|
|
|
1907 |
|
|
/* The procedure linkage table size is bounded by the magnitude
|
1908 |
|
|
of the offset we can describe in the entry. */
|
1909 |
|
|
if (s->size >= (SPARC_ELF_WORD_BYTES(htab) == 8 ?
|
1910 |
|
|
(((bfd_vma)1 << 31) << 1) : 0x400000))
|
1911 |
|
|
{
|
1912 |
|
|
bfd_set_error (bfd_error_bad_value);
|
1913 |
|
|
return FALSE;
|
1914 |
|
|
}
|
1915 |
|
|
|
1916 |
|
|
if (SPARC_ELF_WORD_BYTES(htab) == 8
|
1917 |
|
|
&& s->size >= PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE)
|
1918 |
|
|
{
|
1919 |
|
|
bfd_vma off = s->size - PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE;
|
1920 |
|
|
|
1921 |
|
|
|
1922 |
|
|
off = (off % (160 * PLT64_ENTRY_SIZE)) / PLT64_ENTRY_SIZE;
|
1923 |
|
|
|
1924 |
|
|
h->plt.offset = (s->size - (off * 8));
|
1925 |
|
|
}
|
1926 |
|
|
else
|
1927 |
|
|
h->plt.offset = s->size;
|
1928 |
|
|
|
1929 |
|
|
/* If this symbol is not defined in a regular file, and we are
|
1930 |
|
|
not generating a shared library, then set the symbol to this
|
1931 |
|
|
location in the .plt. This is required to make function
|
1932 |
|
|
pointers compare as equal between the normal executable and
|
1933 |
|
|
the shared library. */
|
1934 |
|
|
if (! info->shared
|
1935 |
|
|
&& !h->def_regular)
|
1936 |
|
|
{
|
1937 |
|
|
h->root.u.def.section = s;
|
1938 |
|
|
h->root.u.def.value = h->plt.offset;
|
1939 |
|
|
}
|
1940 |
|
|
|
1941 |
|
|
/* Make room for this entry. */
|
1942 |
|
|
s->size += htab->plt_entry_size;
|
1943 |
|
|
|
1944 |
|
|
/* We also need to make an entry in the .rela.plt section. */
|
1945 |
|
|
htab->srelplt->size += SPARC_ELF_RELA_BYTES (htab);
|
1946 |
|
|
|
1947 |
|
|
if (htab->is_vxworks)
|
1948 |
|
|
{
|
1949 |
|
|
/* Allocate space for the .got.plt entry. */
|
1950 |
|
|
htab->sgotplt->size += 4;
|
1951 |
|
|
|
1952 |
|
|
/* ...and for the .rela.plt.unloaded relocations. */
|
1953 |
|
|
if (!info->shared)
|
1954 |
|
|
htab->srelplt2->size += sizeof (Elf32_External_Rela) * 3;
|
1955 |
|
|
}
|
1956 |
|
|
}
|
1957 |
|
|
else
|
1958 |
|
|
{
|
1959 |
|
|
h->plt.offset = (bfd_vma) -1;
|
1960 |
|
|
h->needs_plt = 0;
|
1961 |
|
|
}
|
1962 |
|
|
}
|
1963 |
|
|
else
|
1964 |
|
|
{
|
1965 |
|
|
h->plt.offset = (bfd_vma) -1;
|
1966 |
|
|
h->needs_plt = 0;
|
1967 |
|
|
}
|
1968 |
|
|
|
1969 |
|
|
/* If R_SPARC_TLS_IE_{HI22,LO10} symbol is now local to the binary,
|
1970 |
|
|
make it a R_SPARC_TLS_LE_{HI22,LO10} requiring no TLS entry. */
|
1971 |
|
|
if (h->got.refcount > 0
|
1972 |
|
|
&& !info->shared
|
1973 |
|
|
&& h->dynindx == -1
|
1974 |
|
|
&& _bfd_sparc_elf_hash_entry(h)->tls_type == GOT_TLS_IE)
|
1975 |
|
|
h->got.offset = (bfd_vma) -1;
|
1976 |
|
|
else if (h->got.refcount > 0)
|
1977 |
|
|
{
|
1978 |
|
|
asection *s;
|
1979 |
|
|
bfd_boolean dyn;
|
1980 |
|
|
int tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
1981 |
|
|
|
1982 |
|
|
/* Make sure this symbol is output as a dynamic symbol.
|
1983 |
|
|
Undefined weak syms won't yet be marked as dynamic. */
|
1984 |
|
|
if (h->dynindx == -1
|
1985 |
|
|
&& !h->forced_local)
|
1986 |
|
|
{
|
1987 |
|
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
1988 |
|
|
return FALSE;
|
1989 |
|
|
}
|
1990 |
|
|
|
1991 |
|
|
s = htab->sgot;
|
1992 |
|
|
h->got.offset = s->size;
|
1993 |
|
|
s->size += SPARC_ELF_WORD_BYTES (htab);
|
1994 |
|
|
/* R_SPARC_TLS_GD_HI{22,LO10} needs 2 consecutive GOT slots. */
|
1995 |
|
|
if (tls_type == GOT_TLS_GD)
|
1996 |
|
|
s->size += SPARC_ELF_WORD_BYTES (htab);
|
1997 |
|
|
dyn = htab->elf.dynamic_sections_created;
|
1998 |
|
|
/* R_SPARC_TLS_IE_{HI22,LO10} needs one dynamic relocation,
|
1999 |
|
|
R_SPARC_TLS_GD_{HI22,LO10} needs one if local symbol and two if
|
2000 |
|
|
global. */
|
2001 |
|
|
if ((tls_type == GOT_TLS_GD && h->dynindx == -1)
|
2002 |
|
|
|| tls_type == GOT_TLS_IE)
|
2003 |
|
|
htab->srelgot->size += SPARC_ELF_RELA_BYTES (htab);
|
2004 |
|
|
else if (tls_type == GOT_TLS_GD)
|
2005 |
|
|
htab->srelgot->size += 2 * SPARC_ELF_RELA_BYTES (htab);
|
2006 |
|
|
else if (WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h))
|
2007 |
|
|
htab->srelgot->size += SPARC_ELF_RELA_BYTES (htab);
|
2008 |
|
|
}
|
2009 |
|
|
else
|
2010 |
|
|
h->got.offset = (bfd_vma) -1;
|
2011 |
|
|
|
2012 |
|
|
eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
|
2013 |
|
|
if (eh->dyn_relocs == NULL)
|
2014 |
|
|
return TRUE;
|
2015 |
|
|
|
2016 |
|
|
/* In the shared -Bsymbolic case, discard space allocated for
|
2017 |
|
|
dynamic pc-relative relocs against symbols which turn out to be
|
2018 |
|
|
defined in regular objects. For the normal shared case, discard
|
2019 |
|
|
space for pc-relative relocs that have become local due to symbol
|
2020 |
|
|
visibility changes. */
|
2021 |
|
|
|
2022 |
|
|
if (info->shared)
|
2023 |
|
|
{
|
2024 |
|
|
if (h->def_regular
|
2025 |
|
|
&& (h->forced_local
|
2026 |
|
|
|| info->symbolic))
|
2027 |
|
|
{
|
2028 |
|
|
struct _bfd_sparc_elf_dyn_relocs **pp;
|
2029 |
|
|
|
2030 |
|
|
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
|
2031 |
|
|
{
|
2032 |
|
|
p->count -= p->pc_count;
|
2033 |
|
|
p->pc_count = 0;
|
2034 |
|
|
if (p->count == 0)
|
2035 |
|
|
*pp = p->next;
|
2036 |
|
|
else
|
2037 |
|
|
pp = &p->next;
|
2038 |
|
|
}
|
2039 |
|
|
}
|
2040 |
|
|
|
2041 |
|
|
if (htab->is_vxworks)
|
2042 |
|
|
{
|
2043 |
|
|
struct _bfd_sparc_elf_dyn_relocs **pp;
|
2044 |
|
|
|
2045 |
|
|
for (pp = &eh->dyn_relocs; (p = *pp) != NULL; )
|
2046 |
|
|
{
|
2047 |
|
|
if (strcmp (p->sec->output_section->name, ".tls_vars") == 0)
|
2048 |
|
|
*pp = p->next;
|
2049 |
|
|
else
|
2050 |
|
|
pp = &p->next;
|
2051 |
|
|
}
|
2052 |
|
|
}
|
2053 |
|
|
|
2054 |
|
|
/* Also discard relocs on undefined weak syms with non-default
|
2055 |
|
|
visibility. */
|
2056 |
|
|
if (eh->dyn_relocs != NULL
|
2057 |
|
|
&& h->root.type == bfd_link_hash_undefweak)
|
2058 |
|
|
{
|
2059 |
|
|
if (ELF_ST_VISIBILITY (h->other) != STV_DEFAULT)
|
2060 |
|
|
eh->dyn_relocs = NULL;
|
2061 |
|
|
|
2062 |
|
|
/* Make sure undefined weak symbols are output as a dynamic
|
2063 |
|
|
symbol in PIEs. */
|
2064 |
|
|
else if (h->dynindx == -1
|
2065 |
|
|
&& !h->forced_local)
|
2066 |
|
|
{
|
2067 |
|
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
2068 |
|
|
return FALSE;
|
2069 |
|
|
}
|
2070 |
|
|
}
|
2071 |
|
|
}
|
2072 |
|
|
else
|
2073 |
|
|
{
|
2074 |
|
|
/* For the non-shared case, discard space for relocs against
|
2075 |
|
|
symbols which turn out to need copy relocs or are not
|
2076 |
|
|
dynamic. */
|
2077 |
|
|
|
2078 |
|
|
if (!h->non_got_ref
|
2079 |
|
|
&& ((h->def_dynamic
|
2080 |
|
|
&& !h->def_regular)
|
2081 |
|
|
|| (htab->elf.dynamic_sections_created
|
2082 |
|
|
&& (h->root.type == bfd_link_hash_undefweak
|
2083 |
|
|
|| h->root.type == bfd_link_hash_undefined))))
|
2084 |
|
|
{
|
2085 |
|
|
/* Make sure this symbol is output as a dynamic symbol.
|
2086 |
|
|
Undefined weak syms won't yet be marked as dynamic. */
|
2087 |
|
|
if (h->dynindx == -1
|
2088 |
|
|
&& !h->forced_local)
|
2089 |
|
|
{
|
2090 |
|
|
if (! bfd_elf_link_record_dynamic_symbol (info, h))
|
2091 |
|
|
return FALSE;
|
2092 |
|
|
}
|
2093 |
|
|
|
2094 |
|
|
/* If that succeeded, we know we'll be keeping all the
|
2095 |
|
|
relocs. */
|
2096 |
|
|
if (h->dynindx != -1)
|
2097 |
|
|
goto keep;
|
2098 |
|
|
}
|
2099 |
|
|
|
2100 |
|
|
eh->dyn_relocs = NULL;
|
2101 |
|
|
|
2102 |
|
|
keep: ;
|
2103 |
|
|
}
|
2104 |
|
|
|
2105 |
|
|
/* Finally, allocate space. */
|
2106 |
|
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
2107 |
|
|
{
|
2108 |
|
|
asection *sreloc = elf_section_data (p->sec)->sreloc;
|
2109 |
|
|
sreloc->size += p->count * SPARC_ELF_RELA_BYTES (htab);
|
2110 |
|
|
}
|
2111 |
|
|
|
2112 |
|
|
return TRUE;
|
2113 |
|
|
}
|
2114 |
|
|
|
2115 |
|
|
/* Find any dynamic relocs that apply to read-only sections. */
|
2116 |
|
|
|
2117 |
|
|
static bfd_boolean
|
2118 |
|
|
readonly_dynrelocs (struct elf_link_hash_entry *h, PTR inf)
|
2119 |
|
|
{
|
2120 |
|
|
struct _bfd_sparc_elf_link_hash_entry *eh;
|
2121 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
2122 |
|
|
|
2123 |
|
|
if (h->root.type == bfd_link_hash_warning)
|
2124 |
|
|
h = (struct elf_link_hash_entry *) h->root.u.i.link;
|
2125 |
|
|
|
2126 |
|
|
eh = (struct _bfd_sparc_elf_link_hash_entry *) h;
|
2127 |
|
|
for (p = eh->dyn_relocs; p != NULL; p = p->next)
|
2128 |
|
|
{
|
2129 |
|
|
asection *s = p->sec->output_section;
|
2130 |
|
|
|
2131 |
|
|
if (s != NULL && (s->flags & SEC_READONLY) != 0)
|
2132 |
|
|
{
|
2133 |
|
|
struct bfd_link_info *info = (struct bfd_link_info *) inf;
|
2134 |
|
|
|
2135 |
|
|
info->flags |= DF_TEXTREL;
|
2136 |
|
|
|
2137 |
|
|
/* Not an error, just cut short the traversal. */
|
2138 |
|
|
return FALSE;
|
2139 |
|
|
}
|
2140 |
|
|
}
|
2141 |
|
|
return TRUE;
|
2142 |
|
|
}
|
2143 |
|
|
|
2144 |
|
|
/* Return true if the dynamic symbol for a given section should be
|
2145 |
|
|
omitted when creating a shared library. */
|
2146 |
|
|
|
2147 |
|
|
bfd_boolean
|
2148 |
|
|
_bfd_sparc_elf_omit_section_dynsym (bfd *output_bfd,
|
2149 |
|
|
struct bfd_link_info *info,
|
2150 |
|
|
asection *p)
|
2151 |
|
|
{
|
2152 |
|
|
/* We keep the .got section symbol so that explicit relocations
|
2153 |
|
|
against the _GLOBAL_OFFSET_TABLE_ symbol emitted in PIC mode
|
2154 |
|
|
can be turned into relocations against the .got symbol. */
|
2155 |
|
|
if (strcmp (p->name, ".got") == 0)
|
2156 |
|
|
return FALSE;
|
2157 |
|
|
|
2158 |
|
|
return _bfd_elf_link_omit_section_dynsym (output_bfd, info, p);
|
2159 |
|
|
}
|
2160 |
|
|
|
2161 |
|
|
/* Set the sizes of the dynamic sections. */
|
2162 |
|
|
|
2163 |
|
|
bfd_boolean
|
2164 |
|
|
_bfd_sparc_elf_size_dynamic_sections (bfd *output_bfd,
|
2165 |
|
|
struct bfd_link_info *info)
|
2166 |
|
|
{
|
2167 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
2168 |
|
|
bfd *dynobj;
|
2169 |
|
|
asection *s;
|
2170 |
|
|
bfd *ibfd;
|
2171 |
|
|
|
2172 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
2173 |
|
|
dynobj = htab->elf.dynobj;
|
2174 |
|
|
BFD_ASSERT (dynobj != NULL);
|
2175 |
|
|
|
2176 |
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
2177 |
|
|
{
|
2178 |
|
|
/* Set the contents of the .interp section to the interpreter. */
|
2179 |
|
|
if (info->executable)
|
2180 |
|
|
{
|
2181 |
|
|
s = bfd_get_section_by_name (dynobj, ".interp");
|
2182 |
|
|
BFD_ASSERT (s != NULL);
|
2183 |
|
|
s->size = htab->dynamic_interpreter_size;
|
2184 |
|
|
s->contents = (unsigned char *) htab->dynamic_interpreter;
|
2185 |
|
|
}
|
2186 |
|
|
}
|
2187 |
|
|
|
2188 |
|
|
/* Set up .got offsets for local syms, and space for local dynamic
|
2189 |
|
|
relocs. */
|
2190 |
|
|
for (ibfd = info->input_bfds; ibfd != NULL; ibfd = ibfd->link_next)
|
2191 |
|
|
{
|
2192 |
|
|
bfd_signed_vma *local_got;
|
2193 |
|
|
bfd_signed_vma *end_local_got;
|
2194 |
|
|
char *local_tls_type;
|
2195 |
|
|
bfd_size_type locsymcount;
|
2196 |
|
|
Elf_Internal_Shdr *symtab_hdr;
|
2197 |
|
|
asection *srel;
|
2198 |
|
|
|
2199 |
|
|
if (! is_sparc_elf (ibfd))
|
2200 |
|
|
continue;
|
2201 |
|
|
|
2202 |
|
|
for (s = ibfd->sections; s != NULL; s = s->next)
|
2203 |
|
|
{
|
2204 |
|
|
struct _bfd_sparc_elf_dyn_relocs *p;
|
2205 |
|
|
|
2206 |
|
|
for (p = elf_section_data (s)->local_dynrel; p != NULL; p = p->next)
|
2207 |
|
|
{
|
2208 |
|
|
if (!bfd_is_abs_section (p->sec)
|
2209 |
|
|
&& bfd_is_abs_section (p->sec->output_section))
|
2210 |
|
|
{
|
2211 |
|
|
/* Input section has been discarded, either because
|
2212 |
|
|
it is a copy of a linkonce section or due to
|
2213 |
|
|
linker script /DISCARD/, so we'll be discarding
|
2214 |
|
|
the relocs too. */
|
2215 |
|
|
}
|
2216 |
|
|
else if (htab->is_vxworks
|
2217 |
|
|
&& strcmp (p->sec->output_section->name,
|
2218 |
|
|
".tls_vars") == 0)
|
2219 |
|
|
{
|
2220 |
|
|
/* Relocations in vxworks .tls_vars sections are
|
2221 |
|
|
handled specially by the loader. */
|
2222 |
|
|
}
|
2223 |
|
|
else if (p->count != 0)
|
2224 |
|
|
{
|
2225 |
|
|
srel = elf_section_data (p->sec)->sreloc;
|
2226 |
|
|
srel->size += p->count * SPARC_ELF_RELA_BYTES (htab);
|
2227 |
|
|
if ((p->sec->output_section->flags & SEC_READONLY) != 0)
|
2228 |
|
|
info->flags |= DF_TEXTREL;
|
2229 |
|
|
}
|
2230 |
|
|
}
|
2231 |
|
|
}
|
2232 |
|
|
|
2233 |
|
|
local_got = elf_local_got_refcounts (ibfd);
|
2234 |
|
|
if (!local_got)
|
2235 |
|
|
continue;
|
2236 |
|
|
|
2237 |
|
|
symtab_hdr = &elf_symtab_hdr (ibfd);
|
2238 |
|
|
locsymcount = symtab_hdr->sh_info;
|
2239 |
|
|
end_local_got = local_got + locsymcount;
|
2240 |
|
|
local_tls_type = _bfd_sparc_elf_local_got_tls_type (ibfd);
|
2241 |
|
|
s = htab->sgot;
|
2242 |
|
|
srel = htab->srelgot;
|
2243 |
|
|
for (; local_got < end_local_got; ++local_got, ++local_tls_type)
|
2244 |
|
|
{
|
2245 |
|
|
if (*local_got > 0)
|
2246 |
|
|
{
|
2247 |
|
|
*local_got = s->size;
|
2248 |
|
|
s->size += SPARC_ELF_WORD_BYTES (htab);
|
2249 |
|
|
if (*local_tls_type == GOT_TLS_GD)
|
2250 |
|
|
s->size += SPARC_ELF_WORD_BYTES (htab);
|
2251 |
|
|
if (info->shared
|
2252 |
|
|
|| *local_tls_type == GOT_TLS_GD
|
2253 |
|
|
|| *local_tls_type == GOT_TLS_IE)
|
2254 |
|
|
srel->size += SPARC_ELF_RELA_BYTES (htab);
|
2255 |
|
|
}
|
2256 |
|
|
else
|
2257 |
|
|
*local_got = (bfd_vma) -1;
|
2258 |
|
|
}
|
2259 |
|
|
}
|
2260 |
|
|
|
2261 |
|
|
if (htab->tls_ldm_got.refcount > 0)
|
2262 |
|
|
{
|
2263 |
|
|
/* Allocate 2 got entries and 1 dynamic reloc for
|
2264 |
|
|
R_SPARC_TLS_LDM_{HI22,LO10} relocs. */
|
2265 |
|
|
htab->tls_ldm_got.offset = htab->sgot->size;
|
2266 |
|
|
htab->sgot->size += (2 * SPARC_ELF_WORD_BYTES (htab));
|
2267 |
|
|
htab->srelgot->size += SPARC_ELF_RELA_BYTES (htab);
|
2268 |
|
|
}
|
2269 |
|
|
else
|
2270 |
|
|
htab->tls_ldm_got.offset = -1;
|
2271 |
|
|
|
2272 |
|
|
/* Allocate global sym .plt and .got entries, and space for global
|
2273 |
|
|
sym dynamic relocs. */
|
2274 |
|
|
elf_link_hash_traverse (&htab->elf, allocate_dynrelocs, (PTR) info);
|
2275 |
|
|
|
2276 |
|
|
if (! ABI_64_P (output_bfd)
|
2277 |
|
|
&& !htab->is_vxworks
|
2278 |
|
|
&& elf_hash_table (info)->dynamic_sections_created)
|
2279 |
|
|
{
|
2280 |
|
|
/* Make space for the trailing nop in .plt. */
|
2281 |
|
|
if (htab->splt->size > 0)
|
2282 |
|
|
htab->splt->size += 1 * SPARC_INSN_BYTES;
|
2283 |
|
|
|
2284 |
|
|
/* If the .got section is more than 0x1000 bytes, we add
|
2285 |
|
|
0x1000 to the value of _GLOBAL_OFFSET_TABLE_, so that 13
|
2286 |
|
|
bit relocations have a greater chance of working.
|
2287 |
|
|
|
2288 |
|
|
FIXME: Make this optimization work for 64-bit too. */
|
2289 |
|
|
if (htab->sgot->size >= 0x1000
|
2290 |
|
|
&& elf_hash_table (info)->hgot->root.u.def.value == 0)
|
2291 |
|
|
elf_hash_table (info)->hgot->root.u.def.value = 0x1000;
|
2292 |
|
|
}
|
2293 |
|
|
|
2294 |
|
|
/* The check_relocs and adjust_dynamic_symbol entry points have
|
2295 |
|
|
determined the sizes of the various dynamic sections. Allocate
|
2296 |
|
|
memory for them. */
|
2297 |
|
|
for (s = dynobj->sections; s != NULL; s = s->next)
|
2298 |
|
|
{
|
2299 |
|
|
if ((s->flags & SEC_LINKER_CREATED) == 0)
|
2300 |
|
|
continue;
|
2301 |
|
|
|
2302 |
|
|
if (s == htab->splt
|
2303 |
|
|
|| s == htab->sgot
|
2304 |
|
|
|| s == htab->sdynbss
|
2305 |
|
|
|| s == htab->sgotplt)
|
2306 |
|
|
{
|
2307 |
|
|
/* Strip this section if we don't need it; see the
|
2308 |
|
|
comment below. */
|
2309 |
|
|
}
|
2310 |
|
|
else if (CONST_STRNEQ (s->name, ".rela"))
|
2311 |
|
|
{
|
2312 |
|
|
if (s->size != 0)
|
2313 |
|
|
{
|
2314 |
|
|
/* We use the reloc_count field as a counter if we need
|
2315 |
|
|
to copy relocs into the output file. */
|
2316 |
|
|
s->reloc_count = 0;
|
2317 |
|
|
}
|
2318 |
|
|
}
|
2319 |
|
|
else
|
2320 |
|
|
{
|
2321 |
|
|
/* It's not one of our sections. */
|
2322 |
|
|
continue;
|
2323 |
|
|
}
|
2324 |
|
|
|
2325 |
|
|
if (s->size == 0)
|
2326 |
|
|
{
|
2327 |
|
|
/* If we don't need this section, strip it from the
|
2328 |
|
|
output file. This is mostly to handle .rela.bss and
|
2329 |
|
|
.rela.plt. We must create both sections in
|
2330 |
|
|
create_dynamic_sections, because they must be created
|
2331 |
|
|
before the linker maps input sections to output
|
2332 |
|
|
sections. The linker does that before
|
2333 |
|
|
adjust_dynamic_symbol is called, and it is that
|
2334 |
|
|
function which decides whether anything needs to go
|
2335 |
|
|
into these sections. */
|
2336 |
|
|
s->flags |= SEC_EXCLUDE;
|
2337 |
|
|
continue;
|
2338 |
|
|
}
|
2339 |
|
|
|
2340 |
|
|
if ((s->flags & SEC_HAS_CONTENTS) == 0)
|
2341 |
|
|
continue;
|
2342 |
|
|
|
2343 |
|
|
/* Allocate memory for the section contents. Zero the memory
|
2344 |
|
|
for the benefit of .rela.plt, which has 4 unused entries
|
2345 |
|
|
at the beginning, and we don't want garbage. */
|
2346 |
|
|
s->contents = (bfd_byte *) bfd_zalloc (dynobj, s->size);
|
2347 |
|
|
if (s->contents == NULL)
|
2348 |
|
|
return FALSE;
|
2349 |
|
|
}
|
2350 |
|
|
|
2351 |
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
2352 |
|
|
{
|
2353 |
|
|
/* Add some entries to the .dynamic section. We fill in the
|
2354 |
|
|
values later, in _bfd_sparc_elf_finish_dynamic_sections, but we
|
2355 |
|
|
must add the entries now so that we get the correct size for
|
2356 |
|
|
the .dynamic section. The DT_DEBUG entry is filled in by the
|
2357 |
|
|
dynamic linker and used by the debugger. */
|
2358 |
|
|
#define add_dynamic_entry(TAG, VAL) \
|
2359 |
|
|
_bfd_elf_add_dynamic_entry (info, TAG, VAL)
|
2360 |
|
|
|
2361 |
|
|
if (info->executable)
|
2362 |
|
|
{
|
2363 |
|
|
if (!add_dynamic_entry (DT_DEBUG, 0))
|
2364 |
|
|
return FALSE;
|
2365 |
|
|
}
|
2366 |
|
|
|
2367 |
|
|
if (htab->srelplt->size != 0)
|
2368 |
|
|
{
|
2369 |
|
|
if (!add_dynamic_entry (DT_PLTGOT, 0)
|
2370 |
|
|
|| !add_dynamic_entry (DT_PLTRELSZ, 0)
|
2371 |
|
|
|| !add_dynamic_entry (DT_PLTREL, DT_RELA)
|
2372 |
|
|
|| !add_dynamic_entry (DT_JMPREL, 0))
|
2373 |
|
|
return FALSE;
|
2374 |
|
|
}
|
2375 |
|
|
|
2376 |
|
|
if (!add_dynamic_entry (DT_RELA, 0)
|
2377 |
|
|
|| !add_dynamic_entry (DT_RELASZ, 0)
|
2378 |
|
|
|| !add_dynamic_entry (DT_RELAENT,
|
2379 |
|
|
SPARC_ELF_RELA_BYTES (htab)))
|
2380 |
|
|
return FALSE;
|
2381 |
|
|
|
2382 |
|
|
/* If any dynamic relocs apply to a read-only section,
|
2383 |
|
|
then we need a DT_TEXTREL entry. */
|
2384 |
|
|
if ((info->flags & DF_TEXTREL) == 0)
|
2385 |
|
|
elf_link_hash_traverse (&htab->elf, readonly_dynrelocs,
|
2386 |
|
|
(PTR) info);
|
2387 |
|
|
|
2388 |
|
|
if (info->flags & DF_TEXTREL)
|
2389 |
|
|
{
|
2390 |
|
|
if (!add_dynamic_entry (DT_TEXTREL, 0))
|
2391 |
|
|
return FALSE;
|
2392 |
|
|
}
|
2393 |
|
|
|
2394 |
|
|
if (ABI_64_P (output_bfd))
|
2395 |
|
|
{
|
2396 |
|
|
int reg;
|
2397 |
|
|
struct _bfd_sparc_elf_app_reg * app_regs;
|
2398 |
|
|
struct elf_strtab_hash *dynstr;
|
2399 |
|
|
struct elf_link_hash_table *eht = elf_hash_table (info);
|
2400 |
|
|
|
2401 |
|
|
/* Add dynamic STT_REGISTER symbols and corresponding DT_SPARC_REGISTER
|
2402 |
|
|
entries if needed. */
|
2403 |
|
|
app_regs = _bfd_sparc_elf_hash_table (info)->app_regs;
|
2404 |
|
|
dynstr = eht->dynstr;
|
2405 |
|
|
|
2406 |
|
|
for (reg = 0; reg < 4; reg++)
|
2407 |
|
|
if (app_regs [reg].name != NULL)
|
2408 |
|
|
{
|
2409 |
|
|
struct elf_link_local_dynamic_entry *entry, *e;
|
2410 |
|
|
|
2411 |
|
|
if (!add_dynamic_entry (DT_SPARC_REGISTER, 0))
|
2412 |
|
|
return FALSE;
|
2413 |
|
|
|
2414 |
|
|
entry = (struct elf_link_local_dynamic_entry *)
|
2415 |
|
|
bfd_hash_allocate (&info->hash->table, sizeof (*entry));
|
2416 |
|
|
if (entry == NULL)
|
2417 |
|
|
return FALSE;
|
2418 |
|
|
|
2419 |
|
|
/* We cheat here a little bit: the symbol will not be local, so we
|
2420 |
|
|
put it at the end of the dynlocal linked list. We will fix it
|
2421 |
|
|
later on, as we have to fix other fields anyway. */
|
2422 |
|
|
entry->isym.st_value = reg < 2 ? reg + 2 : reg + 4;
|
2423 |
|
|
entry->isym.st_size = 0;
|
2424 |
|
|
if (*app_regs [reg].name != '\0')
|
2425 |
|
|
entry->isym.st_name
|
2426 |
|
|
= _bfd_elf_strtab_add (dynstr, app_regs[reg].name, FALSE);
|
2427 |
|
|
else
|
2428 |
|
|
entry->isym.st_name = 0;
|
2429 |
|
|
entry->isym.st_other = 0;
|
2430 |
|
|
entry->isym.st_info = ELF_ST_INFO (app_regs [reg].bind,
|
2431 |
|
|
STT_REGISTER);
|
2432 |
|
|
entry->isym.st_shndx = app_regs [reg].shndx;
|
2433 |
|
|
entry->next = NULL;
|
2434 |
|
|
entry->input_bfd = output_bfd;
|
2435 |
|
|
entry->input_indx = -1;
|
2436 |
|
|
|
2437 |
|
|
if (eht->dynlocal == NULL)
|
2438 |
|
|
eht->dynlocal = entry;
|
2439 |
|
|
else
|
2440 |
|
|
{
|
2441 |
|
|
for (e = eht->dynlocal; e->next; e = e->next)
|
2442 |
|
|
;
|
2443 |
|
|
e->next = entry;
|
2444 |
|
|
}
|
2445 |
|
|
eht->dynsymcount++;
|
2446 |
|
|
}
|
2447 |
|
|
}
|
2448 |
|
|
if (htab->is_vxworks
|
2449 |
|
|
&& !elf_vxworks_add_dynamic_entries (output_bfd, info))
|
2450 |
|
|
return FALSE;
|
2451 |
|
|
}
|
2452 |
|
|
#undef add_dynamic_entry
|
2453 |
|
|
|
2454 |
|
|
return TRUE;
|
2455 |
|
|
}
|
2456 |
|
|
|
2457 |
|
|
bfd_boolean
|
2458 |
|
|
_bfd_sparc_elf_new_section_hook (bfd *abfd, asection *sec)
|
2459 |
|
|
{
|
2460 |
|
|
if (!sec->used_by_bfd)
|
2461 |
|
|
{
|
2462 |
|
|
struct _bfd_sparc_elf_section_data *sdata;
|
2463 |
|
|
bfd_size_type amt = sizeof (*sdata);
|
2464 |
|
|
|
2465 |
|
|
sdata = bfd_zalloc (abfd, amt);
|
2466 |
|
|
if (sdata == NULL)
|
2467 |
|
|
return FALSE;
|
2468 |
|
|
sec->used_by_bfd = sdata;
|
2469 |
|
|
}
|
2470 |
|
|
|
2471 |
|
|
return _bfd_elf_new_section_hook (abfd, sec);
|
2472 |
|
|
}
|
2473 |
|
|
|
2474 |
|
|
bfd_boolean
|
2475 |
|
|
_bfd_sparc_elf_relax_section (bfd *abfd ATTRIBUTE_UNUSED,
|
2476 |
|
|
struct bfd_section *section,
|
2477 |
|
|
struct bfd_link_info *link_info ATTRIBUTE_UNUSED,
|
2478 |
|
|
bfd_boolean *again)
|
2479 |
|
|
{
|
2480 |
|
|
*again = FALSE;
|
2481 |
|
|
sec_do_relax (section) = 1;
|
2482 |
|
|
return TRUE;
|
2483 |
|
|
}
|
2484 |
|
|
|
2485 |
|
|
/* Return the base VMA address which should be subtracted from real addresses
|
2486 |
|
|
when resolving @dtpoff relocation.
|
2487 |
|
|
This is PT_TLS segment p_vaddr. */
|
2488 |
|
|
|
2489 |
|
|
static bfd_vma
|
2490 |
|
|
dtpoff_base (struct bfd_link_info *info)
|
2491 |
|
|
{
|
2492 |
|
|
/* If tls_sec is NULL, we should have signalled an error already. */
|
2493 |
|
|
if (elf_hash_table (info)->tls_sec == NULL)
|
2494 |
|
|
return 0;
|
2495 |
|
|
return elf_hash_table (info)->tls_sec->vma;
|
2496 |
|
|
}
|
2497 |
|
|
|
2498 |
|
|
/* Return the relocation value for @tpoff relocation
|
2499 |
|
|
if STT_TLS virtual address is ADDRESS. */
|
2500 |
|
|
|
2501 |
|
|
static bfd_vma
|
2502 |
|
|
tpoff (struct bfd_link_info *info, bfd_vma address)
|
2503 |
|
|
{
|
2504 |
|
|
struct elf_link_hash_table *htab = elf_hash_table (info);
|
2505 |
|
|
|
2506 |
|
|
/* If tls_sec is NULL, we should have signalled an error already. */
|
2507 |
|
|
if (htab->tls_sec == NULL)
|
2508 |
|
|
return 0;
|
2509 |
|
|
return address - htab->tls_size - htab->tls_sec->vma;
|
2510 |
|
|
}
|
2511 |
|
|
|
2512 |
|
|
/* Relocate a SPARC ELF section. */
|
2513 |
|
|
|
2514 |
|
|
bfd_boolean
|
2515 |
|
|
_bfd_sparc_elf_relocate_section (bfd *output_bfd,
|
2516 |
|
|
struct bfd_link_info *info,
|
2517 |
|
|
bfd *input_bfd,
|
2518 |
|
|
asection *input_section,
|
2519 |
|
|
bfd_byte *contents,
|
2520 |
|
|
Elf_Internal_Rela *relocs,
|
2521 |
|
|
Elf_Internal_Sym *local_syms,
|
2522 |
|
|
asection **local_sections)
|
2523 |
|
|
{
|
2524 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
2525 |
|
|
Elf_Internal_Shdr *symtab_hdr;
|
2526 |
|
|
struct elf_link_hash_entry **sym_hashes;
|
2527 |
|
|
bfd_vma *local_got_offsets;
|
2528 |
|
|
bfd_vma got_base;
|
2529 |
|
|
asection *sreloc;
|
2530 |
|
|
Elf_Internal_Rela *rel;
|
2531 |
|
|
Elf_Internal_Rela *relend;
|
2532 |
|
|
int num_relocs;
|
2533 |
|
|
bfd_boolean is_vxworks_tls;
|
2534 |
|
|
|
2535 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
2536 |
|
|
symtab_hdr = &elf_symtab_hdr (input_bfd);
|
2537 |
|
|
sym_hashes = elf_sym_hashes (input_bfd);
|
2538 |
|
|
local_got_offsets = elf_local_got_offsets (input_bfd);
|
2539 |
|
|
|
2540 |
|
|
if (elf_hash_table (info)->hgot == NULL)
|
2541 |
|
|
got_base = 0;
|
2542 |
|
|
else
|
2543 |
|
|
got_base = elf_hash_table (info)->hgot->root.u.def.value;
|
2544 |
|
|
|
2545 |
|
|
sreloc = elf_section_data (input_section)->sreloc;
|
2546 |
|
|
/* We have to handle relocations in vxworks .tls_vars sections
|
2547 |
|
|
specially, because the dynamic loader is 'weird'. */
|
2548 |
|
|
is_vxworks_tls = (htab->is_vxworks && info->shared
|
2549 |
|
|
&& !strcmp (input_section->output_section->name,
|
2550 |
|
|
".tls_vars"));
|
2551 |
|
|
|
2552 |
|
|
rel = relocs;
|
2553 |
|
|
if (ABI_64_P (output_bfd))
|
2554 |
|
|
num_relocs = NUM_SHDR_ENTRIES (& elf_section_data (input_section)->rel_hdr);
|
2555 |
|
|
else
|
2556 |
|
|
num_relocs = input_section->reloc_count;
|
2557 |
|
|
relend = relocs + num_relocs;
|
2558 |
|
|
for (; rel < relend; rel++)
|
2559 |
|
|
{
|
2560 |
|
|
int r_type, tls_type;
|
2561 |
|
|
reloc_howto_type *howto;
|
2562 |
|
|
unsigned long r_symndx;
|
2563 |
|
|
struct elf_link_hash_entry *h;
|
2564 |
|
|
Elf_Internal_Sym *sym;
|
2565 |
|
|
asection *sec;
|
2566 |
|
|
bfd_vma relocation, off;
|
2567 |
|
|
bfd_reloc_status_type r;
|
2568 |
|
|
bfd_boolean is_plt = FALSE;
|
2569 |
|
|
bfd_boolean unresolved_reloc;
|
2570 |
|
|
|
2571 |
|
|
r_type = SPARC_ELF_R_TYPE (rel->r_info);
|
2572 |
|
|
if (r_type == R_SPARC_GNU_VTINHERIT
|
2573 |
|
|
|| r_type == R_SPARC_GNU_VTENTRY)
|
2574 |
|
|
continue;
|
2575 |
|
|
|
2576 |
|
|
if (r_type < 0 || r_type >= (int) R_SPARC_max_std)
|
2577 |
|
|
{
|
2578 |
|
|
bfd_set_error (bfd_error_bad_value);
|
2579 |
|
|
return FALSE;
|
2580 |
|
|
}
|
2581 |
|
|
howto = _bfd_sparc_elf_howto_table + r_type;
|
2582 |
|
|
|
2583 |
|
|
r_symndx = SPARC_ELF_R_SYMNDX (htab, rel->r_info);
|
2584 |
|
|
h = NULL;
|
2585 |
|
|
sym = NULL;
|
2586 |
|
|
sec = NULL;
|
2587 |
|
|
unresolved_reloc = FALSE;
|
2588 |
|
|
if (r_symndx < symtab_hdr->sh_info)
|
2589 |
|
|
{
|
2590 |
|
|
sym = local_syms + r_symndx;
|
2591 |
|
|
sec = local_sections[r_symndx];
|
2592 |
|
|
relocation = _bfd_elf_rela_local_sym (output_bfd, sym, &sec, rel);
|
2593 |
|
|
}
|
2594 |
|
|
else
|
2595 |
|
|
{
|
2596 |
|
|
bfd_boolean warned;
|
2597 |
|
|
|
2598 |
|
|
RELOC_FOR_GLOBAL_SYMBOL (info, input_bfd, input_section, rel,
|
2599 |
|
|
r_symndx, symtab_hdr, sym_hashes,
|
2600 |
|
|
h, sec, relocation,
|
2601 |
|
|
unresolved_reloc, warned);
|
2602 |
|
|
if (warned)
|
2603 |
|
|
{
|
2604 |
|
|
/* To avoid generating warning messages about truncated
|
2605 |
|
|
relocations, set the relocation's address to be the same as
|
2606 |
|
|
the start of this section. */
|
2607 |
|
|
if (input_section->output_section != NULL)
|
2608 |
|
|
relocation = input_section->output_section->vma;
|
2609 |
|
|
else
|
2610 |
|
|
relocation = 0;
|
2611 |
|
|
}
|
2612 |
|
|
}
|
2613 |
|
|
|
2614 |
|
|
if (sec != NULL && elf_discarded_section (sec))
|
2615 |
|
|
{
|
2616 |
|
|
/* For relocs against symbols from removed linkonce
|
2617 |
|
|
sections, or sections discarded by a linker script, we
|
2618 |
|
|
just want the section contents zeroed. Avoid any
|
2619 |
|
|
special processing. */
|
2620 |
|
|
_bfd_clear_contents (howto, input_bfd, contents + rel->r_offset);
|
2621 |
|
|
rel->r_info = 0;
|
2622 |
|
|
rel->r_addend = 0;
|
2623 |
|
|
continue;
|
2624 |
|
|
}
|
2625 |
|
|
|
2626 |
|
|
if (info->relocatable)
|
2627 |
|
|
continue;
|
2628 |
|
|
|
2629 |
|
|
switch (r_type)
|
2630 |
|
|
{
|
2631 |
|
|
case R_SPARC_GOTDATA_HIX22:
|
2632 |
|
|
case R_SPARC_GOTDATA_LOX10:
|
2633 |
|
|
case R_SPARC_GOTDATA_OP_HIX22:
|
2634 |
|
|
case R_SPARC_GOTDATA_OP_LOX10:
|
2635 |
|
|
/* We don't support these code transformation optimizations
|
2636 |
|
|
yet, so just leave the sequence alone and treat as
|
2637 |
|
|
GOT22/GOT10. */
|
2638 |
|
|
if (r_type == R_SPARC_GOTDATA_HIX22
|
2639 |
|
|
|| r_type == R_SPARC_GOTDATA_OP_HIX22)
|
2640 |
|
|
r_type = R_SPARC_GOT22;
|
2641 |
|
|
else
|
2642 |
|
|
r_type = R_SPARC_GOT10;
|
2643 |
|
|
/* Fall through. */
|
2644 |
|
|
|
2645 |
|
|
case R_SPARC_GOT10:
|
2646 |
|
|
case R_SPARC_GOT13:
|
2647 |
|
|
case R_SPARC_GOT22:
|
2648 |
|
|
/* Relocation is to the entry for this symbol in the global
|
2649 |
|
|
offset table. */
|
2650 |
|
|
if (htab->sgot == NULL)
|
2651 |
|
|
abort ();
|
2652 |
|
|
|
2653 |
|
|
if (h != NULL)
|
2654 |
|
|
{
|
2655 |
|
|
bfd_boolean dyn;
|
2656 |
|
|
|
2657 |
|
|
off = h->got.offset;
|
2658 |
|
|
BFD_ASSERT (off != (bfd_vma) -1);
|
2659 |
|
|
dyn = elf_hash_table (info)->dynamic_sections_created;
|
2660 |
|
|
|
2661 |
|
|
if (! WILL_CALL_FINISH_DYNAMIC_SYMBOL (dyn, info->shared, h)
|
2662 |
|
|
|| (info->shared
|
2663 |
|
|
&& (info->symbolic
|
2664 |
|
|
|| h->dynindx == -1
|
2665 |
|
|
|| h->forced_local)
|
2666 |
|
|
&& h->def_regular))
|
2667 |
|
|
{
|
2668 |
|
|
/* This is actually a static link, or it is a
|
2669 |
|
|
-Bsymbolic link and the symbol is defined
|
2670 |
|
|
locally, or the symbol was forced to be local
|
2671 |
|
|
because of a version file. We must initialize
|
2672 |
|
|
this entry in the global offset table. Since the
|
2673 |
|
|
offset must always be a multiple of 8 for 64-bit
|
2674 |
|
|
and 4 for 32-bit, we use the least significant bit
|
2675 |
|
|
to record whether we have initialized it already.
|
2676 |
|
|
|
2677 |
|
|
When doing a dynamic link, we create a .rela.got
|
2678 |
|
|
relocation entry to initialize the value. This
|
2679 |
|
|
is done in the finish_dynamic_symbol routine. */
|
2680 |
|
|
if ((off & 1) != 0)
|
2681 |
|
|
off &= ~1;
|
2682 |
|
|
else
|
2683 |
|
|
{
|
2684 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
|
2685 |
|
|
htab->sgot->contents + off);
|
2686 |
|
|
h->got.offset |= 1;
|
2687 |
|
|
}
|
2688 |
|
|
}
|
2689 |
|
|
else
|
2690 |
|
|
unresolved_reloc = FALSE;
|
2691 |
|
|
}
|
2692 |
|
|
else
|
2693 |
|
|
{
|
2694 |
|
|
BFD_ASSERT (local_got_offsets != NULL
|
2695 |
|
|
&& local_got_offsets[r_symndx] != (bfd_vma) -1);
|
2696 |
|
|
|
2697 |
|
|
off = local_got_offsets[r_symndx];
|
2698 |
|
|
|
2699 |
|
|
/* The offset must always be a multiple of 8 on 64-bit and
|
2700 |
|
|
4 on 32-bit. We use the least significant bit to record
|
2701 |
|
|
whether we have already processed this entry. */
|
2702 |
|
|
if ((off & 1) != 0)
|
2703 |
|
|
off &= ~1;
|
2704 |
|
|
else
|
2705 |
|
|
{
|
2706 |
|
|
|
2707 |
|
|
if (info->shared)
|
2708 |
|
|
{
|
2709 |
|
|
asection *s;
|
2710 |
|
|
Elf_Internal_Rela outrel;
|
2711 |
|
|
|
2712 |
|
|
/* We need to generate a R_SPARC_RELATIVE reloc
|
2713 |
|
|
for the dynamic linker. */
|
2714 |
|
|
s = htab->srelgot;
|
2715 |
|
|
BFD_ASSERT (s != NULL);
|
2716 |
|
|
|
2717 |
|
|
outrel.r_offset = (htab->sgot->output_section->vma
|
2718 |
|
|
+ htab->sgot->output_offset
|
2719 |
|
|
+ off);
|
2720 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
|
2721 |
|
|
0, R_SPARC_RELATIVE);
|
2722 |
|
|
outrel.r_addend = relocation;
|
2723 |
|
|
relocation = 0;
|
2724 |
|
|
sparc_elf_append_rela (output_bfd, s, &outrel);
|
2725 |
|
|
}
|
2726 |
|
|
|
2727 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, relocation,
|
2728 |
|
|
htab->sgot->contents + off);
|
2729 |
|
|
local_got_offsets[r_symndx] |= 1;
|
2730 |
|
|
}
|
2731 |
|
|
}
|
2732 |
|
|
relocation = htab->sgot->output_offset + off - got_base;
|
2733 |
|
|
break;
|
2734 |
|
|
|
2735 |
|
|
case R_SPARC_PLT32:
|
2736 |
|
|
case R_SPARC_PLT64:
|
2737 |
|
|
if (h == NULL || h->plt.offset == (bfd_vma) -1)
|
2738 |
|
|
{
|
2739 |
|
|
r_type = (r_type == R_SPARC_PLT32) ? R_SPARC_32 : R_SPARC_64;
|
2740 |
|
|
goto r_sparc_plt32;
|
2741 |
|
|
}
|
2742 |
|
|
/* Fall through. */
|
2743 |
|
|
|
2744 |
|
|
case R_SPARC_WPLT30:
|
2745 |
|
|
case R_SPARC_HIPLT22:
|
2746 |
|
|
case R_SPARC_LOPLT10:
|
2747 |
|
|
case R_SPARC_PCPLT32:
|
2748 |
|
|
case R_SPARC_PCPLT22:
|
2749 |
|
|
case R_SPARC_PCPLT10:
|
2750 |
|
|
r_sparc_wplt30:
|
2751 |
|
|
/* Relocation is to the entry for this symbol in the
|
2752 |
|
|
procedure linkage table. */
|
2753 |
|
|
|
2754 |
|
|
if (! ABI_64_P (output_bfd))
|
2755 |
|
|
{
|
2756 |
|
|
/* The Solaris native assembler will generate a WPLT30 reloc
|
2757 |
|
|
for a local symbol if you assemble a call from one
|
2758 |
|
|
section to another when using -K pic. We treat it as
|
2759 |
|
|
WDISP30. */
|
2760 |
|
|
if (h == NULL)
|
2761 |
|
|
break;
|
2762 |
|
|
}
|
2763 |
|
|
else
|
2764 |
|
|
{
|
2765 |
|
|
BFD_ASSERT (h != NULL);
|
2766 |
|
|
}
|
2767 |
|
|
|
2768 |
|
|
if (h->plt.offset == (bfd_vma) -1 || htab->splt == NULL)
|
2769 |
|
|
{
|
2770 |
|
|
/* We didn't make a PLT entry for this symbol. This
|
2771 |
|
|
happens when statically linking PIC code, or when
|
2772 |
|
|
using -Bsymbolic. */
|
2773 |
|
|
break;
|
2774 |
|
|
}
|
2775 |
|
|
|
2776 |
|
|
relocation = (htab->splt->output_section->vma
|
2777 |
|
|
+ htab->splt->output_offset
|
2778 |
|
|
+ h->plt.offset);
|
2779 |
|
|
unresolved_reloc = FALSE;
|
2780 |
|
|
if (r_type == R_SPARC_PLT32 || r_type == R_SPARC_PLT64)
|
2781 |
|
|
{
|
2782 |
|
|
r_type = r_type == R_SPARC_PLT32 ? R_SPARC_32 : R_SPARC_64;
|
2783 |
|
|
is_plt = TRUE;
|
2784 |
|
|
goto r_sparc_plt32;
|
2785 |
|
|
}
|
2786 |
|
|
break;
|
2787 |
|
|
|
2788 |
|
|
case R_SPARC_PC10:
|
2789 |
|
|
case R_SPARC_PC22:
|
2790 |
|
|
case R_SPARC_PC_HH22:
|
2791 |
|
|
case R_SPARC_PC_HM10:
|
2792 |
|
|
case R_SPARC_PC_LM22:
|
2793 |
|
|
if (h != NULL
|
2794 |
|
|
&& strcmp (h->root.root.string, "_GLOBAL_OFFSET_TABLE_") == 0)
|
2795 |
|
|
break;
|
2796 |
|
|
/* Fall through. */
|
2797 |
|
|
case R_SPARC_DISP8:
|
2798 |
|
|
case R_SPARC_DISP16:
|
2799 |
|
|
case R_SPARC_DISP32:
|
2800 |
|
|
case R_SPARC_DISP64:
|
2801 |
|
|
case R_SPARC_WDISP30:
|
2802 |
|
|
case R_SPARC_WDISP22:
|
2803 |
|
|
case R_SPARC_WDISP19:
|
2804 |
|
|
case R_SPARC_WDISP16:
|
2805 |
|
|
case R_SPARC_8:
|
2806 |
|
|
case R_SPARC_16:
|
2807 |
|
|
case R_SPARC_32:
|
2808 |
|
|
case R_SPARC_HI22:
|
2809 |
|
|
case R_SPARC_22:
|
2810 |
|
|
case R_SPARC_13:
|
2811 |
|
|
case R_SPARC_LO10:
|
2812 |
|
|
case R_SPARC_UA16:
|
2813 |
|
|
case R_SPARC_UA32:
|
2814 |
|
|
case R_SPARC_10:
|
2815 |
|
|
case R_SPARC_11:
|
2816 |
|
|
case R_SPARC_64:
|
2817 |
|
|
case R_SPARC_OLO10:
|
2818 |
|
|
case R_SPARC_HH22:
|
2819 |
|
|
case R_SPARC_HM10:
|
2820 |
|
|
case R_SPARC_LM22:
|
2821 |
|
|
case R_SPARC_7:
|
2822 |
|
|
case R_SPARC_5:
|
2823 |
|
|
case R_SPARC_6:
|
2824 |
|
|
case R_SPARC_HIX22:
|
2825 |
|
|
case R_SPARC_LOX10:
|
2826 |
|
|
case R_SPARC_H44:
|
2827 |
|
|
case R_SPARC_M44:
|
2828 |
|
|
case R_SPARC_L44:
|
2829 |
|
|
case R_SPARC_UA64:
|
2830 |
|
|
r_sparc_plt32:
|
2831 |
|
|
if ((input_section->flags & SEC_ALLOC) == 0
|
2832 |
|
|
|| is_vxworks_tls)
|
2833 |
|
|
break;
|
2834 |
|
|
|
2835 |
|
|
if ((info->shared
|
2836 |
|
|
&& (h == NULL
|
2837 |
|
|
|| ELF_ST_VISIBILITY (h->other) == STV_DEFAULT
|
2838 |
|
|
|| h->root.type != bfd_link_hash_undefweak)
|
2839 |
|
|
&& (! howto->pc_relative
|
2840 |
|
|
|| (h != NULL
|
2841 |
|
|
&& h->dynindx != -1
|
2842 |
|
|
&& (! info->symbolic
|
2843 |
|
|
|| !h->def_regular))))
|
2844 |
|
|
|| (!info->shared
|
2845 |
|
|
&& h != NULL
|
2846 |
|
|
&& h->dynindx != -1
|
2847 |
|
|
&& !h->non_got_ref
|
2848 |
|
|
&& ((h->def_dynamic
|
2849 |
|
|
&& !h->def_regular)
|
2850 |
|
|
|| h->root.type == bfd_link_hash_undefweak
|
2851 |
|
|
|| h->root.type == bfd_link_hash_undefined)))
|
2852 |
|
|
{
|
2853 |
|
|
Elf_Internal_Rela outrel;
|
2854 |
|
|
bfd_boolean skip, relocate = FALSE;
|
2855 |
|
|
|
2856 |
|
|
/* When generating a shared object, these relocations
|
2857 |
|
|
are copied into the output file to be resolved at run
|
2858 |
|
|
time. */
|
2859 |
|
|
|
2860 |
|
|
BFD_ASSERT (sreloc != NULL);
|
2861 |
|
|
|
2862 |
|
|
skip = FALSE;
|
2863 |
|
|
|
2864 |
|
|
outrel.r_offset =
|
2865 |
|
|
_bfd_elf_section_offset (output_bfd, info, input_section,
|
2866 |
|
|
rel->r_offset);
|
2867 |
|
|
if (outrel.r_offset == (bfd_vma) -1)
|
2868 |
|
|
skip = TRUE;
|
2869 |
|
|
else if (outrel.r_offset == (bfd_vma) -2)
|
2870 |
|
|
skip = TRUE, relocate = TRUE;
|
2871 |
|
|
outrel.r_offset += (input_section->output_section->vma
|
2872 |
|
|
+ input_section->output_offset);
|
2873 |
|
|
|
2874 |
|
|
/* Optimize unaligned reloc usage now that we know where
|
2875 |
|
|
it finally resides. */
|
2876 |
|
|
switch (r_type)
|
2877 |
|
|
{
|
2878 |
|
|
case R_SPARC_16:
|
2879 |
|
|
if (outrel.r_offset & 1)
|
2880 |
|
|
r_type = R_SPARC_UA16;
|
2881 |
|
|
break;
|
2882 |
|
|
case R_SPARC_UA16:
|
2883 |
|
|
if (!(outrel.r_offset & 1))
|
2884 |
|
|
r_type = R_SPARC_16;
|
2885 |
|
|
break;
|
2886 |
|
|
case R_SPARC_32:
|
2887 |
|
|
if (outrel.r_offset & 3)
|
2888 |
|
|
r_type = R_SPARC_UA32;
|
2889 |
|
|
break;
|
2890 |
|
|
case R_SPARC_UA32:
|
2891 |
|
|
if (!(outrel.r_offset & 3))
|
2892 |
|
|
r_type = R_SPARC_32;
|
2893 |
|
|
break;
|
2894 |
|
|
case R_SPARC_64:
|
2895 |
|
|
if (outrel.r_offset & 7)
|
2896 |
|
|
r_type = R_SPARC_UA64;
|
2897 |
|
|
break;
|
2898 |
|
|
case R_SPARC_UA64:
|
2899 |
|
|
if (!(outrel.r_offset & 7))
|
2900 |
|
|
r_type = R_SPARC_64;
|
2901 |
|
|
break;
|
2902 |
|
|
case R_SPARC_DISP8:
|
2903 |
|
|
case R_SPARC_DISP16:
|
2904 |
|
|
case R_SPARC_DISP32:
|
2905 |
|
|
case R_SPARC_DISP64:
|
2906 |
|
|
/* If the symbol is not dynamic, we should not keep
|
2907 |
|
|
a dynamic relocation. But an .rela.* slot has been
|
2908 |
|
|
allocated for it, output R_SPARC_NONE.
|
2909 |
|
|
FIXME: Add code tracking needed dynamic relocs as
|
2910 |
|
|
e.g. i386 has. */
|
2911 |
|
|
if (h->dynindx == -1)
|
2912 |
|
|
skip = TRUE, relocate = TRUE;
|
2913 |
|
|
break;
|
2914 |
|
|
}
|
2915 |
|
|
|
2916 |
|
|
if (skip)
|
2917 |
|
|
memset (&outrel, 0, sizeof outrel);
|
2918 |
|
|
/* h->dynindx may be -1 if the symbol was marked to
|
2919 |
|
|
become local. */
|
2920 |
|
|
else if (h != NULL && ! is_plt
|
2921 |
|
|
&& ((! info->symbolic && h->dynindx != -1)
|
2922 |
|
|
|| !h->def_regular))
|
2923 |
|
|
{
|
2924 |
|
|
BFD_ASSERT (h->dynindx != -1);
|
2925 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, rel, h->dynindx, r_type);
|
2926 |
|
|
outrel.r_addend = rel->r_addend;
|
2927 |
|
|
}
|
2928 |
|
|
else
|
2929 |
|
|
{
|
2930 |
|
|
if (r_type == R_SPARC_32 || r_type == R_SPARC_64)
|
2931 |
|
|
{
|
2932 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, NULL,
|
2933 |
|
|
0, R_SPARC_RELATIVE);
|
2934 |
|
|
outrel.r_addend = relocation + rel->r_addend;
|
2935 |
|
|
}
|
2936 |
|
|
else
|
2937 |
|
|
{
|
2938 |
|
|
long indx;
|
2939 |
|
|
|
2940 |
|
|
outrel.r_addend = relocation + rel->r_addend;
|
2941 |
|
|
|
2942 |
|
|
if (is_plt)
|
2943 |
|
|
sec = htab->splt;
|
2944 |
|
|
|
2945 |
|
|
if (bfd_is_abs_section (sec))
|
2946 |
|
|
indx = 0;
|
2947 |
|
|
else if (sec == NULL || sec->owner == NULL)
|
2948 |
|
|
{
|
2949 |
|
|
bfd_set_error (bfd_error_bad_value);
|
2950 |
|
|
return FALSE;
|
2951 |
|
|
}
|
2952 |
|
|
else
|
2953 |
|
|
{
|
2954 |
|
|
asection *osec;
|
2955 |
|
|
|
2956 |
|
|
/* We are turning this relocation into one
|
2957 |
|
|
against a section symbol. It would be
|
2958 |
|
|
proper to subtract the symbol's value,
|
2959 |
|
|
osec->vma, from the emitted reloc addend,
|
2960 |
|
|
but ld.so expects buggy relocs. */
|
2961 |
|
|
osec = sec->output_section;
|
2962 |
|
|
indx = elf_section_data (osec)->dynindx;
|
2963 |
|
|
|
2964 |
|
|
if (indx == 0)
|
2965 |
|
|
{
|
2966 |
|
|
osec = htab->elf.text_index_section;
|
2967 |
|
|
indx = elf_section_data (osec)->dynindx;
|
2968 |
|
|
}
|
2969 |
|
|
|
2970 |
|
|
/* FIXME: we really should be able to link non-pic
|
2971 |
|
|
shared libraries. */
|
2972 |
|
|
if (indx == 0)
|
2973 |
|
|
{
|
2974 |
|
|
BFD_FAIL ();
|
2975 |
|
|
(*_bfd_error_handler)
|
2976 |
|
|
(_("%B: probably compiled without -fPIC?"),
|
2977 |
|
|
input_bfd);
|
2978 |
|
|
bfd_set_error (bfd_error_bad_value);
|
2979 |
|
|
return FALSE;
|
2980 |
|
|
}
|
2981 |
|
|
}
|
2982 |
|
|
|
2983 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, rel, indx,
|
2984 |
|
|
r_type);
|
2985 |
|
|
}
|
2986 |
|
|
}
|
2987 |
|
|
|
2988 |
|
|
sparc_elf_append_rela (output_bfd, sreloc, &outrel);
|
2989 |
|
|
|
2990 |
|
|
/* This reloc will be computed at runtime, so there's no
|
2991 |
|
|
need to do anything now. */
|
2992 |
|
|
if (! relocate)
|
2993 |
|
|
continue;
|
2994 |
|
|
}
|
2995 |
|
|
break;
|
2996 |
|
|
|
2997 |
|
|
case R_SPARC_TLS_GD_HI22:
|
2998 |
|
|
if (! ABI_64_P (input_bfd)
|
2999 |
|
|
&& ! _bfd_sparc_elf_tdata (input_bfd)->has_tlsgd)
|
3000 |
|
|
{
|
3001 |
|
|
/* R_SPARC_REV32 used the same reloc number as
|
3002 |
|
|
R_SPARC_TLS_GD_HI22. */
|
3003 |
|
|
r_type = R_SPARC_REV32;
|
3004 |
|
|
break;
|
3005 |
|
|
}
|
3006 |
|
|
/* Fall through */
|
3007 |
|
|
|
3008 |
|
|
case R_SPARC_TLS_GD_LO10:
|
3009 |
|
|
case R_SPARC_TLS_IE_HI22:
|
3010 |
|
|
case R_SPARC_TLS_IE_LO10:
|
3011 |
|
|
r_type = sparc_elf_tls_transition (info, input_bfd, r_type, h == NULL);
|
3012 |
|
|
tls_type = GOT_UNKNOWN;
|
3013 |
|
|
if (h == NULL && local_got_offsets)
|
3014 |
|
|
tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
|
3015 |
|
|
else if (h != NULL)
|
3016 |
|
|
{
|
3017 |
|
|
tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
3018 |
|
|
if (!info->shared && h->dynindx == -1 && tls_type == GOT_TLS_IE)
|
3019 |
|
|
switch (SPARC_ELF_R_TYPE (rel->r_info))
|
3020 |
|
|
{
|
3021 |
|
|
case R_SPARC_TLS_GD_HI22:
|
3022 |
|
|
case R_SPARC_TLS_IE_HI22:
|
3023 |
|
|
r_type = R_SPARC_TLS_LE_HIX22;
|
3024 |
|
|
break;
|
3025 |
|
|
default:
|
3026 |
|
|
r_type = R_SPARC_TLS_LE_LOX10;
|
3027 |
|
|
break;
|
3028 |
|
|
}
|
3029 |
|
|
}
|
3030 |
|
|
if (tls_type == GOT_TLS_IE)
|
3031 |
|
|
switch (r_type)
|
3032 |
|
|
{
|
3033 |
|
|
case R_SPARC_TLS_GD_HI22:
|
3034 |
|
|
r_type = R_SPARC_TLS_IE_HI22;
|
3035 |
|
|
break;
|
3036 |
|
|
case R_SPARC_TLS_GD_LO10:
|
3037 |
|
|
r_type = R_SPARC_TLS_IE_LO10;
|
3038 |
|
|
break;
|
3039 |
|
|
}
|
3040 |
|
|
|
3041 |
|
|
if (r_type == R_SPARC_TLS_LE_HIX22)
|
3042 |
|
|
{
|
3043 |
|
|
relocation = tpoff (info, relocation);
|
3044 |
|
|
break;
|
3045 |
|
|
}
|
3046 |
|
|
if (r_type == R_SPARC_TLS_LE_LOX10)
|
3047 |
|
|
{
|
3048 |
|
|
/* Change add into xor. */
|
3049 |
|
|
relocation = tpoff (info, relocation);
|
3050 |
|
|
bfd_put_32 (output_bfd, (bfd_get_32 (input_bfd,
|
3051 |
|
|
contents + rel->r_offset)
|
3052 |
|
|
| 0x80182000), contents + rel->r_offset);
|
3053 |
|
|
break;
|
3054 |
|
|
}
|
3055 |
|
|
|
3056 |
|
|
if (h != NULL)
|
3057 |
|
|
{
|
3058 |
|
|
off = h->got.offset;
|
3059 |
|
|
h->got.offset |= 1;
|
3060 |
|
|
}
|
3061 |
|
|
else
|
3062 |
|
|
{
|
3063 |
|
|
BFD_ASSERT (local_got_offsets != NULL);
|
3064 |
|
|
off = local_got_offsets[r_symndx];
|
3065 |
|
|
local_got_offsets[r_symndx] |= 1;
|
3066 |
|
|
}
|
3067 |
|
|
|
3068 |
|
|
r_sparc_tlsldm:
|
3069 |
|
|
if (htab->sgot == NULL)
|
3070 |
|
|
abort ();
|
3071 |
|
|
|
3072 |
|
|
if ((off & 1) != 0)
|
3073 |
|
|
off &= ~1;
|
3074 |
|
|
else
|
3075 |
|
|
{
|
3076 |
|
|
Elf_Internal_Rela outrel;
|
3077 |
|
|
int dr_type, indx;
|
3078 |
|
|
|
3079 |
|
|
if (htab->srelgot == NULL)
|
3080 |
|
|
abort ();
|
3081 |
|
|
|
3082 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, 0, htab->sgot->contents + off);
|
3083 |
|
|
outrel.r_offset = (htab->sgot->output_section->vma
|
3084 |
|
|
+ htab->sgot->output_offset + off);
|
3085 |
|
|
indx = h && h->dynindx != -1 ? h->dynindx : 0;
|
3086 |
|
|
if (r_type == R_SPARC_TLS_IE_HI22
|
3087 |
|
|
|| r_type == R_SPARC_TLS_IE_LO10)
|
3088 |
|
|
dr_type = SPARC_ELF_TPOFF_RELOC (htab);
|
3089 |
|
|
else
|
3090 |
|
|
dr_type = SPARC_ELF_DTPMOD_RELOC (htab);
|
3091 |
|
|
if (dr_type == SPARC_ELF_TPOFF_RELOC (htab) && indx == 0)
|
3092 |
|
|
outrel.r_addend = relocation - dtpoff_base (info);
|
3093 |
|
|
else
|
3094 |
|
|
outrel.r_addend = 0;
|
3095 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx, dr_type);
|
3096 |
|
|
sparc_elf_append_rela (output_bfd, htab->srelgot, &outrel);
|
3097 |
|
|
|
3098 |
|
|
if (r_type == R_SPARC_TLS_GD_HI22
|
3099 |
|
|
|| r_type == R_SPARC_TLS_GD_LO10)
|
3100 |
|
|
{
|
3101 |
|
|
if (indx == 0)
|
3102 |
|
|
{
|
3103 |
|
|
BFD_ASSERT (! unresolved_reloc);
|
3104 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd,
|
3105 |
|
|
relocation - dtpoff_base (info),
|
3106 |
|
|
(htab->sgot->contents + off
|
3107 |
|
|
+ SPARC_ELF_WORD_BYTES (htab)));
|
3108 |
|
|
}
|
3109 |
|
|
else
|
3110 |
|
|
{
|
3111 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
|
3112 |
|
|
(htab->sgot->contents + off
|
3113 |
|
|
+ SPARC_ELF_WORD_BYTES (htab)));
|
3114 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, indx,
|
3115 |
|
|
SPARC_ELF_DTPOFF_RELOC (htab));
|
3116 |
|
|
outrel.r_offset += SPARC_ELF_WORD_BYTES (htab);
|
3117 |
|
|
sparc_elf_append_rela (output_bfd, htab->srelgot,
|
3118 |
|
|
&outrel);
|
3119 |
|
|
}
|
3120 |
|
|
}
|
3121 |
|
|
else if (dr_type == SPARC_ELF_DTPMOD_RELOC (htab))
|
3122 |
|
|
{
|
3123 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
|
3124 |
|
|
(htab->sgot->contents + off
|
3125 |
|
|
+ SPARC_ELF_WORD_BYTES (htab)));
|
3126 |
|
|
}
|
3127 |
|
|
}
|
3128 |
|
|
|
3129 |
|
|
if (off >= (bfd_vma) -2)
|
3130 |
|
|
abort ();
|
3131 |
|
|
|
3132 |
|
|
relocation = htab->sgot->output_offset + off - got_base;
|
3133 |
|
|
unresolved_reloc = FALSE;
|
3134 |
|
|
howto = _bfd_sparc_elf_howto_table + r_type;
|
3135 |
|
|
break;
|
3136 |
|
|
|
3137 |
|
|
case R_SPARC_TLS_LDM_HI22:
|
3138 |
|
|
case R_SPARC_TLS_LDM_LO10:
|
3139 |
|
|
if (! info->shared)
|
3140 |
|
|
{
|
3141 |
|
|
bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
|
3142 |
|
|
continue;
|
3143 |
|
|
}
|
3144 |
|
|
off = htab->tls_ldm_got.offset;
|
3145 |
|
|
htab->tls_ldm_got.offset |= 1;
|
3146 |
|
|
goto r_sparc_tlsldm;
|
3147 |
|
|
|
3148 |
|
|
case R_SPARC_TLS_LDO_HIX22:
|
3149 |
|
|
case R_SPARC_TLS_LDO_LOX10:
|
3150 |
|
|
if (info->shared)
|
3151 |
|
|
{
|
3152 |
|
|
relocation -= dtpoff_base (info);
|
3153 |
|
|
break;
|
3154 |
|
|
}
|
3155 |
|
|
|
3156 |
|
|
r_type = (r_type == R_SPARC_TLS_LDO_HIX22
|
3157 |
|
|
? R_SPARC_TLS_LE_HIX22 : R_SPARC_TLS_LE_LOX10);
|
3158 |
|
|
/* Fall through. */
|
3159 |
|
|
|
3160 |
|
|
case R_SPARC_TLS_LE_HIX22:
|
3161 |
|
|
case R_SPARC_TLS_LE_LOX10:
|
3162 |
|
|
if (info->shared)
|
3163 |
|
|
{
|
3164 |
|
|
Elf_Internal_Rela outrel;
|
3165 |
|
|
bfd_boolean skip, relocate = FALSE;
|
3166 |
|
|
|
3167 |
|
|
BFD_ASSERT (sreloc != NULL);
|
3168 |
|
|
skip = FALSE;
|
3169 |
|
|
outrel.r_offset =
|
3170 |
|
|
_bfd_elf_section_offset (output_bfd, info, input_section,
|
3171 |
|
|
rel->r_offset);
|
3172 |
|
|
if (outrel.r_offset == (bfd_vma) -1)
|
3173 |
|
|
skip = TRUE;
|
3174 |
|
|
else if (outrel.r_offset == (bfd_vma) -2)
|
3175 |
|
|
skip = TRUE, relocate = TRUE;
|
3176 |
|
|
outrel.r_offset += (input_section->output_section->vma
|
3177 |
|
|
+ input_section->output_offset);
|
3178 |
|
|
if (skip)
|
3179 |
|
|
memset (&outrel, 0, sizeof outrel);
|
3180 |
|
|
else
|
3181 |
|
|
{
|
3182 |
|
|
outrel.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, r_type);
|
3183 |
|
|
outrel.r_addend = relocation - dtpoff_base (info)
|
3184 |
|
|
+ rel->r_addend;
|
3185 |
|
|
}
|
3186 |
|
|
|
3187 |
|
|
sparc_elf_append_rela (output_bfd, sreloc, &outrel);
|
3188 |
|
|
continue;
|
3189 |
|
|
}
|
3190 |
|
|
relocation = tpoff (info, relocation);
|
3191 |
|
|
break;
|
3192 |
|
|
|
3193 |
|
|
case R_SPARC_TLS_LDM_CALL:
|
3194 |
|
|
if (! info->shared)
|
3195 |
|
|
{
|
3196 |
|
|
/* mov %g0, %o0 */
|
3197 |
|
|
bfd_put_32 (output_bfd, 0x90100000, contents + rel->r_offset);
|
3198 |
|
|
continue;
|
3199 |
|
|
}
|
3200 |
|
|
/* Fall through */
|
3201 |
|
|
|
3202 |
|
|
case R_SPARC_TLS_GD_CALL:
|
3203 |
|
|
tls_type = GOT_UNKNOWN;
|
3204 |
|
|
if (h == NULL && local_got_offsets)
|
3205 |
|
|
tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
|
3206 |
|
|
else if (h != NULL)
|
3207 |
|
|
tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
3208 |
|
|
if (! info->shared
|
3209 |
|
|
|| (r_type == R_SPARC_TLS_GD_CALL && tls_type == GOT_TLS_IE))
|
3210 |
|
|
{
|
3211 |
|
|
bfd_vma insn;
|
3212 |
|
|
|
3213 |
|
|
if (!info->shared && (h == NULL || h->dynindx == -1))
|
3214 |
|
|
{
|
3215 |
|
|
/* GD -> LE */
|
3216 |
|
|
bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
|
3217 |
|
|
continue;
|
3218 |
|
|
}
|
3219 |
|
|
|
3220 |
|
|
/* GD -> IE */
|
3221 |
|
|
if (rel + 1 < relend
|
3222 |
|
|
&& SPARC_ELF_R_TYPE (rel[1].r_info) == R_SPARC_TLS_GD_ADD
|
3223 |
|
|
&& rel[1].r_offset == rel->r_offset + 4
|
3224 |
|
|
&& SPARC_ELF_R_SYMNDX (htab, rel[1].r_info) == r_symndx
|
3225 |
|
|
&& (((insn = bfd_get_32 (input_bfd,
|
3226 |
|
|
contents + rel[1].r_offset))
|
3227 |
|
|
>> 25) & 0x1f) == 8)
|
3228 |
|
|
{
|
3229 |
|
|
/* We have
|
3230 |
|
|
call __tls_get_addr, %tgd_call(foo)
|
3231 |
|
|
add %reg1, %reg2, %o0, %tgd_add(foo)
|
3232 |
|
|
and change it into IE:
|
3233 |
|
|
{ld,ldx} [%reg1 + %reg2], %o0, %tie_ldx(foo)
|
3234 |
|
|
add %g7, %o0, %o0, %tie_add(foo).
|
3235 |
|
|
add is 0x80000000 | (rd << 25) | (rs1 << 14) | rs2,
|
3236 |
|
|
ld is 0xc0000000 | (rd << 25) | (rs1 << 14) | rs2,
|
3237 |
|
|
ldx is 0xc0580000 | (rd << 25) | (rs1 << 14) | rs2. */
|
3238 |
|
|
bfd_put_32 (output_bfd, insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000),
|
3239 |
|
|
contents + rel->r_offset);
|
3240 |
|
|
bfd_put_32 (output_bfd, 0x9001c008,
|
3241 |
|
|
contents + rel->r_offset + 4);
|
3242 |
|
|
rel++;
|
3243 |
|
|
continue;
|
3244 |
|
|
}
|
3245 |
|
|
|
3246 |
|
|
bfd_put_32 (output_bfd, 0x9001c008, contents + rel->r_offset);
|
3247 |
|
|
continue;
|
3248 |
|
|
}
|
3249 |
|
|
|
3250 |
|
|
h = (struct elf_link_hash_entry *)
|
3251 |
|
|
bfd_link_hash_lookup (info->hash, "__tls_get_addr", FALSE,
|
3252 |
|
|
FALSE, TRUE);
|
3253 |
|
|
BFD_ASSERT (h != NULL);
|
3254 |
|
|
r_type = R_SPARC_WPLT30;
|
3255 |
|
|
howto = _bfd_sparc_elf_howto_table + r_type;
|
3256 |
|
|
goto r_sparc_wplt30;
|
3257 |
|
|
|
3258 |
|
|
case R_SPARC_TLS_GD_ADD:
|
3259 |
|
|
tls_type = GOT_UNKNOWN;
|
3260 |
|
|
if (h == NULL && local_got_offsets)
|
3261 |
|
|
tls_type = _bfd_sparc_elf_local_got_tls_type (input_bfd) [r_symndx];
|
3262 |
|
|
else if (h != NULL)
|
3263 |
|
|
tls_type = _bfd_sparc_elf_hash_entry(h)->tls_type;
|
3264 |
|
|
if (! info->shared || tls_type == GOT_TLS_IE)
|
3265 |
|
|
{
|
3266 |
|
|
/* add %reg1, %reg2, %reg3, %tgd_add(foo)
|
3267 |
|
|
changed into IE:
|
3268 |
|
|
{ld,ldx} [%reg1 + %reg2], %reg3, %tie_ldx(foo)
|
3269 |
|
|
or LE:
|
3270 |
|
|
add %g7, %reg2, %reg3. */
|
3271 |
|
|
bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
3272 |
|
|
if ((h != NULL && h->dynindx != -1) || info->shared)
|
3273 |
|
|
relocation = insn | (ABI_64_P (output_bfd) ? 0xc0580000 : 0xc0000000);
|
3274 |
|
|
else
|
3275 |
|
|
relocation = (insn & ~0x7c000) | 0x1c000;
|
3276 |
|
|
bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
|
3277 |
|
|
}
|
3278 |
|
|
continue;
|
3279 |
|
|
|
3280 |
|
|
case R_SPARC_TLS_LDM_ADD:
|
3281 |
|
|
if (! info->shared)
|
3282 |
|
|
bfd_put_32 (output_bfd, SPARC_NOP, contents + rel->r_offset);
|
3283 |
|
|
continue;
|
3284 |
|
|
|
3285 |
|
|
case R_SPARC_TLS_LDO_ADD:
|
3286 |
|
|
if (! info->shared)
|
3287 |
|
|
{
|
3288 |
|
|
/* Change rs1 into %g7. */
|
3289 |
|
|
bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
3290 |
|
|
insn = (insn & ~0x7c000) | 0x1c000;
|
3291 |
|
|
bfd_put_32 (output_bfd, insn, contents + rel->r_offset);
|
3292 |
|
|
}
|
3293 |
|
|
continue;
|
3294 |
|
|
|
3295 |
|
|
case R_SPARC_GOTDATA_OP:
|
3296 |
|
|
/* We don't support gotdata code transformation optimizations
|
3297 |
|
|
yet, so simply leave the sequence as-is. */
|
3298 |
|
|
continue;
|
3299 |
|
|
|
3300 |
|
|
case R_SPARC_TLS_IE_LD:
|
3301 |
|
|
case R_SPARC_TLS_IE_LDX:
|
3302 |
|
|
if (! info->shared && (h == NULL || h->dynindx == -1))
|
3303 |
|
|
{
|
3304 |
|
|
bfd_vma insn = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
3305 |
|
|
int rs2 = insn & 0x1f;
|
3306 |
|
|
int rd = (insn >> 25) & 0x1f;
|
3307 |
|
|
|
3308 |
|
|
if (rs2 == rd)
|
3309 |
|
|
relocation = SPARC_NOP;
|
3310 |
|
|
else
|
3311 |
|
|
relocation = 0x80100000 | (insn & 0x3e00001f);
|
3312 |
|
|
bfd_put_32 (output_bfd, relocation, contents + rel->r_offset);
|
3313 |
|
|
}
|
3314 |
|
|
continue;
|
3315 |
|
|
|
3316 |
|
|
case R_SPARC_TLS_IE_ADD:
|
3317 |
|
|
/* Totally useless relocation. */
|
3318 |
|
|
continue;
|
3319 |
|
|
|
3320 |
|
|
case R_SPARC_TLS_DTPOFF32:
|
3321 |
|
|
case R_SPARC_TLS_DTPOFF64:
|
3322 |
|
|
relocation -= dtpoff_base (info);
|
3323 |
|
|
break;
|
3324 |
|
|
|
3325 |
|
|
default:
|
3326 |
|
|
break;
|
3327 |
|
|
}
|
3328 |
|
|
|
3329 |
|
|
/* Dynamic relocs are not propagated for SEC_DEBUGGING sections
|
3330 |
|
|
because such sections are not SEC_ALLOC and thus ld.so will
|
3331 |
|
|
not process them. */
|
3332 |
|
|
if (unresolved_reloc
|
3333 |
|
|
&& !((input_section->flags & SEC_DEBUGGING) != 0
|
3334 |
|
|
&& h->def_dynamic))
|
3335 |
|
|
(*_bfd_error_handler)
|
3336 |
|
|
(_("%B(%A+0x%lx): unresolvable %s relocation against symbol `%s'"),
|
3337 |
|
|
input_bfd,
|
3338 |
|
|
input_section,
|
3339 |
|
|
(long) rel->r_offset,
|
3340 |
|
|
howto->name,
|
3341 |
|
|
h->root.root.string);
|
3342 |
|
|
|
3343 |
|
|
r = bfd_reloc_continue;
|
3344 |
|
|
if (r_type == R_SPARC_OLO10)
|
3345 |
|
|
{
|
3346 |
|
|
bfd_vma x;
|
3347 |
|
|
|
3348 |
|
|
if (! ABI_64_P (output_bfd))
|
3349 |
|
|
abort ();
|
3350 |
|
|
|
3351 |
|
|
relocation += rel->r_addend;
|
3352 |
|
|
relocation = (relocation & 0x3ff) + ELF64_R_TYPE_DATA (rel->r_info);
|
3353 |
|
|
|
3354 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
3355 |
|
|
x = (x & ~(bfd_vma) 0x1fff) | (relocation & 0x1fff);
|
3356 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
3357 |
|
|
|
3358 |
|
|
r = bfd_check_overflow (howto->complain_on_overflow,
|
3359 |
|
|
howto->bitsize, howto->rightshift,
|
3360 |
|
|
bfd_arch_bits_per_address (input_bfd),
|
3361 |
|
|
relocation);
|
3362 |
|
|
}
|
3363 |
|
|
else if (r_type == R_SPARC_WDISP16)
|
3364 |
|
|
{
|
3365 |
|
|
bfd_vma x;
|
3366 |
|
|
|
3367 |
|
|
relocation += rel->r_addend;
|
3368 |
|
|
relocation -= (input_section->output_section->vma
|
3369 |
|
|
+ input_section->output_offset);
|
3370 |
|
|
relocation -= rel->r_offset;
|
3371 |
|
|
|
3372 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
3373 |
|
|
x |= ((((relocation >> 2) & 0xc000) << 6)
|
3374 |
|
|
| ((relocation >> 2) & 0x3fff));
|
3375 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
3376 |
|
|
|
3377 |
|
|
r = bfd_check_overflow (howto->complain_on_overflow,
|
3378 |
|
|
howto->bitsize, howto->rightshift,
|
3379 |
|
|
bfd_arch_bits_per_address (input_bfd),
|
3380 |
|
|
relocation);
|
3381 |
|
|
}
|
3382 |
|
|
else if (r_type == R_SPARC_REV32)
|
3383 |
|
|
{
|
3384 |
|
|
bfd_vma x;
|
3385 |
|
|
|
3386 |
|
|
relocation = relocation + rel->r_addend;
|
3387 |
|
|
|
3388 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
3389 |
|
|
x = x + relocation;
|
3390 |
|
|
bfd_putl32 (/*input_bfd,*/ x, contents + rel->r_offset);
|
3391 |
|
|
r = bfd_reloc_ok;
|
3392 |
|
|
}
|
3393 |
|
|
else if (r_type == R_SPARC_TLS_LDO_HIX22
|
3394 |
|
|
|| r_type == R_SPARC_TLS_LE_HIX22)
|
3395 |
|
|
{
|
3396 |
|
|
bfd_vma x;
|
3397 |
|
|
|
3398 |
|
|
relocation += rel->r_addend;
|
3399 |
|
|
if (r_type == R_SPARC_TLS_LE_HIX22)
|
3400 |
|
|
relocation ^= MINUS_ONE;
|
3401 |
|
|
|
3402 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
3403 |
|
|
x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
|
3404 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
3405 |
|
|
r = bfd_reloc_ok;
|
3406 |
|
|
}
|
3407 |
|
|
else if (r_type == R_SPARC_TLS_LDO_LOX10
|
3408 |
|
|
|| r_type == R_SPARC_TLS_LE_LOX10)
|
3409 |
|
|
{
|
3410 |
|
|
bfd_vma x;
|
3411 |
|
|
|
3412 |
|
|
relocation += rel->r_addend;
|
3413 |
|
|
relocation &= 0x3ff;
|
3414 |
|
|
if (r_type == R_SPARC_TLS_LE_LOX10)
|
3415 |
|
|
relocation |= 0x1c00;
|
3416 |
|
|
|
3417 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
3418 |
|
|
x = (x & ~(bfd_vma) 0x1fff) | relocation;
|
3419 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
3420 |
|
|
|
3421 |
|
|
r = bfd_reloc_ok;
|
3422 |
|
|
}
|
3423 |
|
|
else if (r_type == R_SPARC_HIX22)
|
3424 |
|
|
{
|
3425 |
|
|
bfd_vma x;
|
3426 |
|
|
|
3427 |
|
|
relocation += rel->r_addend;
|
3428 |
|
|
relocation = relocation ^ MINUS_ONE;
|
3429 |
|
|
|
3430 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
3431 |
|
|
x = (x & ~(bfd_vma) 0x3fffff) | ((relocation >> 10) & 0x3fffff);
|
3432 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
3433 |
|
|
|
3434 |
|
|
r = bfd_check_overflow (howto->complain_on_overflow,
|
3435 |
|
|
howto->bitsize, howto->rightshift,
|
3436 |
|
|
bfd_arch_bits_per_address (input_bfd),
|
3437 |
|
|
relocation);
|
3438 |
|
|
}
|
3439 |
|
|
else if (r_type == R_SPARC_LOX10)
|
3440 |
|
|
{
|
3441 |
|
|
bfd_vma x;
|
3442 |
|
|
|
3443 |
|
|
relocation += rel->r_addend;
|
3444 |
|
|
relocation = (relocation & 0x3ff) | 0x1c00;
|
3445 |
|
|
|
3446 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
3447 |
|
|
x = (x & ~(bfd_vma) 0x1fff) | relocation;
|
3448 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
3449 |
|
|
|
3450 |
|
|
r = bfd_reloc_ok;
|
3451 |
|
|
}
|
3452 |
|
|
else if ((r_type == R_SPARC_WDISP30 || r_type == R_SPARC_WPLT30)
|
3453 |
|
|
&& sec_do_relax (input_section)
|
3454 |
|
|
&& rel->r_offset + 4 < input_section->size)
|
3455 |
|
|
{
|
3456 |
|
|
#define G0 0
|
3457 |
|
|
#define O7 15
|
3458 |
|
|
#define XCC (2 << 20)
|
3459 |
|
|
#define COND(x) (((x)&0xf)<<25)
|
3460 |
|
|
#define CONDA COND(0x8)
|
3461 |
|
|
#define INSN_BPA (F2(0,1) | CONDA | BPRED | XCC)
|
3462 |
|
|
#define INSN_BA (F2(0,2) | CONDA)
|
3463 |
|
|
#define INSN_OR F3(2, 0x2, 0)
|
3464 |
|
|
#define INSN_NOP F2(0,4)
|
3465 |
|
|
|
3466 |
|
|
bfd_vma x, y;
|
3467 |
|
|
|
3468 |
|
|
/* If the instruction is a call with either:
|
3469 |
|
|
restore
|
3470 |
|
|
arithmetic instruction with rd == %o7
|
3471 |
|
|
where rs1 != %o7 and rs2 if it is register != %o7
|
3472 |
|
|
then we can optimize if the call destination is near
|
3473 |
|
|
by changing the call into a branch always. */
|
3474 |
|
|
x = bfd_get_32 (input_bfd, contents + rel->r_offset);
|
3475 |
|
|
y = bfd_get_32 (input_bfd, contents + rel->r_offset + 4);
|
3476 |
|
|
if ((x & OP(~0)) == OP(1) && (y & OP(~0)) == OP(2))
|
3477 |
|
|
{
|
3478 |
|
|
if (((y & OP3(~0)) == OP3(0x3d) /* restore */
|
3479 |
|
|
|| ((y & OP3(0x28)) == 0 /* arithmetic */
|
3480 |
|
|
&& (y & RD(~0)) == RD(O7)))
|
3481 |
|
|
&& (y & RS1(~0)) != RS1(O7)
|
3482 |
|
|
&& ((y & F3I(~0))
|
3483 |
|
|
|| (y & RS2(~0)) != RS2(O7)))
|
3484 |
|
|
{
|
3485 |
|
|
bfd_vma reloc;
|
3486 |
|
|
|
3487 |
|
|
reloc = relocation + rel->r_addend - rel->r_offset;
|
3488 |
|
|
reloc -= (input_section->output_section->vma
|
3489 |
|
|
+ input_section->output_offset);
|
3490 |
|
|
|
3491 |
|
|
/* Ensure the branch fits into simm22. */
|
3492 |
|
|
if ((reloc & 3) == 0
|
3493 |
|
|
&& ((reloc & ~(bfd_vma)0x7fffff) == 0
|
3494 |
|
|
|| ((reloc | 0x7fffff) == ~(bfd_vma)0)))
|
3495 |
|
|
{
|
3496 |
|
|
reloc >>= 2;
|
3497 |
|
|
|
3498 |
|
|
/* Check whether it fits into simm19. */
|
3499 |
|
|
if (((reloc & 0x3c0000) == 0
|
3500 |
|
|
|| (reloc & 0x3c0000) == 0x3c0000)
|
3501 |
|
|
&& (ABI_64_P (output_bfd)
|
3502 |
|
|
|| elf_elfheader (output_bfd)->e_flags & EF_SPARC_32PLUS))
|
3503 |
|
|
x = INSN_BPA | (reloc & 0x7ffff); /* ba,pt %xcc */
|
3504 |
|
|
else
|
3505 |
|
|
x = INSN_BA | (reloc & 0x3fffff); /* ba */
|
3506 |
|
|
bfd_put_32 (input_bfd, x, contents + rel->r_offset);
|
3507 |
|
|
r = bfd_reloc_ok;
|
3508 |
|
|
if (rel->r_offset >= 4
|
3509 |
|
|
&& (y & (0xffffffff ^ RS1(~0)))
|
3510 |
|
|
== (INSN_OR | RD(O7) | RS2(G0)))
|
3511 |
|
|
{
|
3512 |
|
|
bfd_vma z;
|
3513 |
|
|
unsigned int reg;
|
3514 |
|
|
|
3515 |
|
|
z = bfd_get_32 (input_bfd,
|
3516 |
|
|
contents + rel->r_offset - 4);
|
3517 |
|
|
if ((z & (0xffffffff ^ RD(~0)))
|
3518 |
|
|
!= (INSN_OR | RS1(O7) | RS2(G0)))
|
3519 |
|
|
break;
|
3520 |
|
|
|
3521 |
|
|
/* The sequence was
|
3522 |
|
|
or %o7, %g0, %rN
|
3523 |
|
|
call foo
|
3524 |
|
|
or %rN, %g0, %o7
|
3525 |
|
|
|
3526 |
|
|
If call foo was replaced with ba, replace
|
3527 |
|
|
or %rN, %g0, %o7 with nop. */
|
3528 |
|
|
|
3529 |
|
|
reg = (y & RS1(~0)) >> 14;
|
3530 |
|
|
if (reg != ((z & RD(~0)) >> 25)
|
3531 |
|
|
|| reg == G0 || reg == O7)
|
3532 |
|
|
break;
|
3533 |
|
|
|
3534 |
|
|
bfd_put_32 (input_bfd, (bfd_vma) INSN_NOP,
|
3535 |
|
|
contents + rel->r_offset + 4);
|
3536 |
|
|
}
|
3537 |
|
|
|
3538 |
|
|
}
|
3539 |
|
|
}
|
3540 |
|
|
}
|
3541 |
|
|
}
|
3542 |
|
|
|
3543 |
|
|
if (r == bfd_reloc_continue)
|
3544 |
|
|
r = _bfd_final_link_relocate (howto, input_bfd, input_section,
|
3545 |
|
|
contents, rel->r_offset,
|
3546 |
|
|
relocation, rel->r_addend);
|
3547 |
|
|
|
3548 |
|
|
if (r != bfd_reloc_ok)
|
3549 |
|
|
{
|
3550 |
|
|
switch (r)
|
3551 |
|
|
{
|
3552 |
|
|
default:
|
3553 |
|
|
case bfd_reloc_outofrange:
|
3554 |
|
|
abort ();
|
3555 |
|
|
case bfd_reloc_overflow:
|
3556 |
|
|
{
|
3557 |
|
|
const char *name;
|
3558 |
|
|
|
3559 |
|
|
/* The Solaris native linker silently disregards overflows.
|
3560 |
|
|
We don't, but this breaks stabs debugging info, whose
|
3561 |
|
|
relocations are only 32-bits wide. Ignore overflows in
|
3562 |
|
|
this case and also for discarded entries. */
|
3563 |
|
|
if ((r_type == R_SPARC_32 || r_type == R_SPARC_DISP32)
|
3564 |
|
|
&& (((input_section->flags & SEC_DEBUGGING) != 0
|
3565 |
|
|
&& strcmp (bfd_section_name (input_bfd,
|
3566 |
|
|
input_section),
|
3567 |
|
|
".stab") == 0)
|
3568 |
|
|
|| _bfd_elf_section_offset (output_bfd, info,
|
3569 |
|
|
input_section,
|
3570 |
|
|
rel->r_offset)
|
3571 |
|
|
== (bfd_vma)-1))
|
3572 |
|
|
break;
|
3573 |
|
|
|
3574 |
|
|
if (h != NULL)
|
3575 |
|
|
{
|
3576 |
|
|
/* Assume this is a call protected by other code that
|
3577 |
|
|
detect the symbol is undefined. If this is the case,
|
3578 |
|
|
we can safely ignore the overflow. If not, the
|
3579 |
|
|
program is hosed anyway, and a little warning isn't
|
3580 |
|
|
going to help. */
|
3581 |
|
|
if (h->root.type == bfd_link_hash_undefweak
|
3582 |
|
|
&& howto->pc_relative)
|
3583 |
|
|
break;
|
3584 |
|
|
|
3585 |
|
|
name = NULL;
|
3586 |
|
|
}
|
3587 |
|
|
else
|
3588 |
|
|
{
|
3589 |
|
|
name = bfd_elf_string_from_elf_section (input_bfd,
|
3590 |
|
|
symtab_hdr->sh_link,
|
3591 |
|
|
sym->st_name);
|
3592 |
|
|
if (name == NULL)
|
3593 |
|
|
return FALSE;
|
3594 |
|
|
if (*name == '\0')
|
3595 |
|
|
name = bfd_section_name (input_bfd, sec);
|
3596 |
|
|
}
|
3597 |
|
|
if (! ((*info->callbacks->reloc_overflow)
|
3598 |
|
|
(info, (h ? &h->root : NULL), name, howto->name,
|
3599 |
|
|
(bfd_vma) 0, input_bfd, input_section,
|
3600 |
|
|
rel->r_offset)))
|
3601 |
|
|
return FALSE;
|
3602 |
|
|
}
|
3603 |
|
|
break;
|
3604 |
|
|
}
|
3605 |
|
|
}
|
3606 |
|
|
}
|
3607 |
|
|
|
3608 |
|
|
return TRUE;
|
3609 |
|
|
}
|
3610 |
|
|
|
3611 |
|
|
/* Build a VxWorks PLT entry. PLT_INDEX is the index of the PLT entry
|
3612 |
|
|
and PLT_OFFSET is the byte offset from the start of .plt. GOT_OFFSET
|
3613 |
|
|
is the offset of the associated .got.plt entry from
|
3614 |
|
|
_GLOBAL_OFFSET_TABLE_. */
|
3615 |
|
|
|
3616 |
|
|
static void
|
3617 |
|
|
sparc_vxworks_build_plt_entry (bfd *output_bfd, struct bfd_link_info *info,
|
3618 |
|
|
bfd_vma plt_offset, bfd_vma plt_index,
|
3619 |
|
|
bfd_vma got_offset)
|
3620 |
|
|
{
|
3621 |
|
|
bfd_vma got_base;
|
3622 |
|
|
const bfd_vma *plt_entry;
|
3623 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
3624 |
|
|
bfd_byte *loc;
|
3625 |
|
|
Elf_Internal_Rela rela;
|
3626 |
|
|
|
3627 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
3628 |
|
|
if (info->shared)
|
3629 |
|
|
{
|
3630 |
|
|
plt_entry = sparc_vxworks_shared_plt_entry;
|
3631 |
|
|
got_base = 0;
|
3632 |
|
|
}
|
3633 |
|
|
else
|
3634 |
|
|
{
|
3635 |
|
|
plt_entry = sparc_vxworks_exec_plt_entry;
|
3636 |
|
|
got_base = (htab->elf.hgot->root.u.def.value
|
3637 |
|
|
+ htab->elf.hgot->root.u.def.section->output_offset
|
3638 |
|
|
+ htab->elf.hgot->root.u.def.section->output_section->vma);
|
3639 |
|
|
}
|
3640 |
|
|
|
3641 |
|
|
/* Fill in the entry in the procedure linkage table. */
|
3642 |
|
|
bfd_put_32 (output_bfd, plt_entry[0] + ((got_base + got_offset) >> 10),
|
3643 |
|
|
htab->splt->contents + plt_offset);
|
3644 |
|
|
bfd_put_32 (output_bfd, plt_entry[1] + ((got_base + got_offset) & 0x3ff),
|
3645 |
|
|
htab->splt->contents + plt_offset + 4);
|
3646 |
|
|
bfd_put_32 (output_bfd, plt_entry[2],
|
3647 |
|
|
htab->splt->contents + plt_offset + 8);
|
3648 |
|
|
bfd_put_32 (output_bfd, plt_entry[3],
|
3649 |
|
|
htab->splt->contents + plt_offset + 12);
|
3650 |
|
|
bfd_put_32 (output_bfd, plt_entry[4],
|
3651 |
|
|
htab->splt->contents + plt_offset + 16);
|
3652 |
|
|
bfd_put_32 (output_bfd, plt_entry[5] + (plt_index >> 10),
|
3653 |
|
|
htab->splt->contents + plt_offset + 20);
|
3654 |
|
|
/* PC-relative displacement for a branch to the start of
|
3655 |
|
|
the PLT section. */
|
3656 |
|
|
bfd_put_32 (output_bfd, plt_entry[6] + (((-plt_offset - 24) >> 2)
|
3657 |
|
|
& 0x003fffff),
|
3658 |
|
|
htab->splt->contents + plt_offset + 24);
|
3659 |
|
|
bfd_put_32 (output_bfd, plt_entry[7] + (plt_index & 0x3ff),
|
3660 |
|
|
htab->splt->contents + plt_offset + 28);
|
3661 |
|
|
|
3662 |
|
|
/* Fill in the .got.plt entry, pointing initially at the
|
3663 |
|
|
second half of the PLT entry. */
|
3664 |
|
|
BFD_ASSERT (htab->sgotplt != NULL);
|
3665 |
|
|
bfd_put_32 (output_bfd,
|
3666 |
|
|
htab->splt->output_section->vma
|
3667 |
|
|
+ htab->splt->output_offset
|
3668 |
|
|
+ plt_offset + 20,
|
3669 |
|
|
htab->sgotplt->contents + got_offset);
|
3670 |
|
|
|
3671 |
|
|
/* Add relocations to .rela.plt.unloaded. */
|
3672 |
|
|
if (!info->shared)
|
3673 |
|
|
{
|
3674 |
|
|
loc = (htab->srelplt2->contents
|
3675 |
|
|
+ (2 + 3 * plt_index) * sizeof (Elf32_External_Rela));
|
3676 |
|
|
|
3677 |
|
|
/* Relocate the initial sethi. */
|
3678 |
|
|
rela.r_offset = (htab->splt->output_section->vma
|
3679 |
|
|
+ htab->splt->output_offset
|
3680 |
|
|
+ plt_offset);
|
3681 |
|
|
rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
|
3682 |
|
|
rela.r_addend = got_offset;
|
3683 |
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
3684 |
|
|
loc += sizeof (Elf32_External_Rela);
|
3685 |
|
|
|
3686 |
|
|
/* Likewise the following or. */
|
3687 |
|
|
rela.r_offset += 4;
|
3688 |
|
|
rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
|
3689 |
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
3690 |
|
|
loc += sizeof (Elf32_External_Rela);
|
3691 |
|
|
|
3692 |
|
|
/* Relocate the .got.plt entry. */
|
3693 |
|
|
rela.r_offset = (htab->sgotplt->output_section->vma
|
3694 |
|
|
+ htab->sgotplt->output_offset
|
3695 |
|
|
+ got_offset);
|
3696 |
|
|
rela.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
|
3697 |
|
|
rela.r_addend = plt_offset + 20;
|
3698 |
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
3699 |
|
|
}
|
3700 |
|
|
}
|
3701 |
|
|
|
3702 |
|
|
/* Finish up dynamic symbol handling. We set the contents of various
|
3703 |
|
|
dynamic sections here. */
|
3704 |
|
|
|
3705 |
|
|
bfd_boolean
|
3706 |
|
|
_bfd_sparc_elf_finish_dynamic_symbol (bfd *output_bfd,
|
3707 |
|
|
struct bfd_link_info *info,
|
3708 |
|
|
struct elf_link_hash_entry *h,
|
3709 |
|
|
Elf_Internal_Sym *sym)
|
3710 |
|
|
{
|
3711 |
|
|
bfd *dynobj;
|
3712 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
3713 |
|
|
const struct elf_backend_data *bed;
|
3714 |
|
|
|
3715 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
3716 |
|
|
dynobj = htab->elf.dynobj;
|
3717 |
|
|
bed = get_elf_backend_data (output_bfd);
|
3718 |
|
|
|
3719 |
|
|
if (h->plt.offset != (bfd_vma) -1)
|
3720 |
|
|
{
|
3721 |
|
|
asection *splt;
|
3722 |
|
|
asection *srela;
|
3723 |
|
|
Elf_Internal_Rela rela;
|
3724 |
|
|
bfd_byte *loc;
|
3725 |
|
|
bfd_vma r_offset, got_offset;
|
3726 |
|
|
int rela_index;
|
3727 |
|
|
|
3728 |
|
|
/* This symbol has an entry in the PLT. Set it up. */
|
3729 |
|
|
|
3730 |
|
|
BFD_ASSERT (h->dynindx != -1);
|
3731 |
|
|
|
3732 |
|
|
splt = htab->splt;
|
3733 |
|
|
srela = htab->srelplt;
|
3734 |
|
|
BFD_ASSERT (splt != NULL && srela != NULL);
|
3735 |
|
|
|
3736 |
|
|
/* Fill in the entry in the .rela.plt section. */
|
3737 |
|
|
if (htab->is_vxworks)
|
3738 |
|
|
{
|
3739 |
|
|
/* Work out the index of this PLT entry. */
|
3740 |
|
|
rela_index = ((h->plt.offset - htab->plt_header_size)
|
3741 |
|
|
/ htab->plt_entry_size);
|
3742 |
|
|
|
3743 |
|
|
/* Calculate the offset of the associated .got.plt entry.
|
3744 |
|
|
The first three entries are reserved. */
|
3745 |
|
|
got_offset = (rela_index + 3) * 4;
|
3746 |
|
|
|
3747 |
|
|
sparc_vxworks_build_plt_entry (output_bfd, info, h->plt.offset,
|
3748 |
|
|
rela_index, got_offset);
|
3749 |
|
|
|
3750 |
|
|
|
3751 |
|
|
/* On VxWorks, the relocation points to the .got.plt entry,
|
3752 |
|
|
not the .plt entry. */
|
3753 |
|
|
rela.r_offset = (htab->sgotplt->output_section->vma
|
3754 |
|
|
+ htab->sgotplt->output_offset
|
3755 |
|
|
+ got_offset);
|
3756 |
|
|
rela.r_addend = 0;
|
3757 |
|
|
}
|
3758 |
|
|
else
|
3759 |
|
|
{
|
3760 |
|
|
/* Fill in the entry in the procedure linkage table. */
|
3761 |
|
|
rela_index = SPARC_ELF_BUILD_PLT_ENTRY (htab, output_bfd, splt,
|
3762 |
|
|
h->plt.offset, splt->size,
|
3763 |
|
|
&r_offset);
|
3764 |
|
|
|
3765 |
|
|
rela.r_offset = r_offset
|
3766 |
|
|
+ (splt->output_section->vma + splt->output_offset);
|
3767 |
|
|
if (! ABI_64_P (output_bfd)
|
3768 |
|
|
|| h->plt.offset < (PLT64_LARGE_THRESHOLD * PLT64_ENTRY_SIZE))
|
3769 |
|
|
{
|
3770 |
|
|
rela.r_addend = 0;
|
3771 |
|
|
}
|
3772 |
|
|
else
|
3773 |
|
|
{
|
3774 |
|
|
rela.r_addend = (-(h->plt.offset + 4)
|
3775 |
|
|
- splt->output_section->vma
|
3776 |
|
|
- splt->output_offset);
|
3777 |
|
|
}
|
3778 |
|
|
}
|
3779 |
|
|
rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_JMP_SLOT);
|
3780 |
|
|
|
3781 |
|
|
/* Adjust for the first 4 reserved elements in the .plt section
|
3782 |
|
|
when setting the offset in the .rela.plt section.
|
3783 |
|
|
Sun forgot to read their own ABI and copied elf32-sparc behaviour,
|
3784 |
|
|
thus .plt[4] has corresponding .rela.plt[0] and so on. */
|
3785 |
|
|
|
3786 |
|
|
loc = srela->contents;
|
3787 |
|
|
loc += rela_index * bed->s->sizeof_rela;
|
3788 |
|
|
bed->s->swap_reloca_out (output_bfd, &rela, loc);
|
3789 |
|
|
|
3790 |
|
|
if (!h->def_regular)
|
3791 |
|
|
{
|
3792 |
|
|
/* Mark the symbol as undefined, rather than as defined in
|
3793 |
|
|
the .plt section. Leave the value alone. */
|
3794 |
|
|
sym->st_shndx = SHN_UNDEF;
|
3795 |
|
|
/* If the symbol is weak, we do need to clear the value.
|
3796 |
|
|
Otherwise, the PLT entry would provide a definition for
|
3797 |
|
|
the symbol even if the symbol wasn't defined anywhere,
|
3798 |
|
|
and so the symbol would never be NULL. */
|
3799 |
|
|
if (!h->ref_regular_nonweak)
|
3800 |
|
|
sym->st_value = 0;
|
3801 |
|
|
}
|
3802 |
|
|
}
|
3803 |
|
|
|
3804 |
|
|
if (h->got.offset != (bfd_vma) -1
|
3805 |
|
|
&& _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_GD
|
3806 |
|
|
&& _bfd_sparc_elf_hash_entry(h)->tls_type != GOT_TLS_IE)
|
3807 |
|
|
{
|
3808 |
|
|
asection *sgot;
|
3809 |
|
|
asection *srela;
|
3810 |
|
|
Elf_Internal_Rela rela;
|
3811 |
|
|
|
3812 |
|
|
/* This symbol has an entry in the GOT. Set it up. */
|
3813 |
|
|
|
3814 |
|
|
sgot = htab->sgot;
|
3815 |
|
|
srela = htab->srelgot;
|
3816 |
|
|
BFD_ASSERT (sgot != NULL && srela != NULL);
|
3817 |
|
|
|
3818 |
|
|
rela.r_offset = (sgot->output_section->vma
|
3819 |
|
|
+ sgot->output_offset
|
3820 |
|
|
+ (h->got.offset &~ (bfd_vma) 1));
|
3821 |
|
|
|
3822 |
|
|
/* If this is a -Bsymbolic link, and the symbol is defined
|
3823 |
|
|
locally, we just want to emit a RELATIVE reloc. Likewise if
|
3824 |
|
|
the symbol was forced to be local because of a version file.
|
3825 |
|
|
The entry in the global offset table will already have been
|
3826 |
|
|
initialized in the relocate_section function. */
|
3827 |
|
|
if (info->shared
|
3828 |
|
|
&& (info->symbolic || h->dynindx == -1)
|
3829 |
|
|
&& h->def_regular)
|
3830 |
|
|
{
|
3831 |
|
|
asection *sec = h->root.u.def.section;
|
3832 |
|
|
rela.r_info = SPARC_ELF_R_INFO (htab, NULL, 0, R_SPARC_RELATIVE);
|
3833 |
|
|
rela.r_addend = (h->root.u.def.value
|
3834 |
|
|
+ sec->output_section->vma
|
3835 |
|
|
+ sec->output_offset);
|
3836 |
|
|
}
|
3837 |
|
|
else
|
3838 |
|
|
{
|
3839 |
|
|
rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_GLOB_DAT);
|
3840 |
|
|
rela.r_addend = 0;
|
3841 |
|
|
}
|
3842 |
|
|
|
3843 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, 0,
|
3844 |
|
|
sgot->contents + (h->got.offset & ~(bfd_vma) 1));
|
3845 |
|
|
sparc_elf_append_rela (output_bfd, srela, &rela);
|
3846 |
|
|
}
|
3847 |
|
|
|
3848 |
|
|
if (h->needs_copy)
|
3849 |
|
|
{
|
3850 |
|
|
asection *s;
|
3851 |
|
|
Elf_Internal_Rela rela;
|
3852 |
|
|
|
3853 |
|
|
/* This symbols needs a copy reloc. Set it up. */
|
3854 |
|
|
BFD_ASSERT (h->dynindx != -1);
|
3855 |
|
|
|
3856 |
|
|
s = bfd_get_section_by_name (h->root.u.def.section->owner,
|
3857 |
|
|
".rela.bss");
|
3858 |
|
|
BFD_ASSERT (s != NULL);
|
3859 |
|
|
|
3860 |
|
|
rela.r_offset = (h->root.u.def.value
|
3861 |
|
|
+ h->root.u.def.section->output_section->vma
|
3862 |
|
|
+ h->root.u.def.section->output_offset);
|
3863 |
|
|
rela.r_info = SPARC_ELF_R_INFO (htab, NULL, h->dynindx, R_SPARC_COPY);
|
3864 |
|
|
rela.r_addend = 0;
|
3865 |
|
|
sparc_elf_append_rela (output_bfd, s, &rela);
|
3866 |
|
|
}
|
3867 |
|
|
|
3868 |
|
|
/* Mark some specially defined symbols as absolute. On VxWorks,
|
3869 |
|
|
_GLOBAL_OFFSET_TABLE_ is not absolute: it is relative to the
|
3870 |
|
|
".got" section. Likewise _PROCEDURE_LINKAGE_TABLE_ and ".plt". */
|
3871 |
|
|
if (strcmp (h->root.root.string, "_DYNAMIC") == 0
|
3872 |
|
|
|| (!htab->is_vxworks
|
3873 |
|
|
&& (h == htab->elf.hgot || h == htab->elf.hplt)))
|
3874 |
|
|
sym->st_shndx = SHN_ABS;
|
3875 |
|
|
|
3876 |
|
|
return TRUE;
|
3877 |
|
|
}
|
3878 |
|
|
|
3879 |
|
|
/* Finish up the dynamic sections. */
|
3880 |
|
|
|
3881 |
|
|
static bfd_boolean
|
3882 |
|
|
sparc_finish_dyn (bfd *output_bfd, struct bfd_link_info *info,
|
3883 |
|
|
bfd *dynobj, asection *sdyn,
|
3884 |
|
|
asection *splt ATTRIBUTE_UNUSED)
|
3885 |
|
|
{
|
3886 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
3887 |
|
|
const struct elf_backend_data *bed;
|
3888 |
|
|
bfd_byte *dyncon, *dynconend;
|
3889 |
|
|
size_t dynsize;
|
3890 |
|
|
int stt_regidx = -1;
|
3891 |
|
|
bfd_boolean abi_64_p;
|
3892 |
|
|
|
3893 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
3894 |
|
|
bed = get_elf_backend_data (output_bfd);
|
3895 |
|
|
dynsize = bed->s->sizeof_dyn;
|
3896 |
|
|
dynconend = sdyn->contents + sdyn->size;
|
3897 |
|
|
abi_64_p = ABI_64_P (output_bfd);
|
3898 |
|
|
for (dyncon = sdyn->contents; dyncon < dynconend; dyncon += dynsize)
|
3899 |
|
|
{
|
3900 |
|
|
Elf_Internal_Dyn dyn;
|
3901 |
|
|
const char *name;
|
3902 |
|
|
bfd_boolean size;
|
3903 |
|
|
|
3904 |
|
|
bed->s->swap_dyn_in (dynobj, dyncon, &dyn);
|
3905 |
|
|
|
3906 |
|
|
if (htab->is_vxworks && dyn.d_tag == DT_RELASZ)
|
3907 |
|
|
{
|
3908 |
|
|
/* On VxWorks, DT_RELASZ should not include the relocations
|
3909 |
|
|
in .rela.plt. */
|
3910 |
|
|
if (htab->srelplt)
|
3911 |
|
|
{
|
3912 |
|
|
dyn.d_un.d_val -= htab->srelplt->size;
|
3913 |
|
|
bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
|
3914 |
|
|
}
|
3915 |
|
|
}
|
3916 |
|
|
else if (htab->is_vxworks && dyn.d_tag == DT_PLTGOT)
|
3917 |
|
|
{
|
3918 |
|
|
/* On VxWorks, DT_PLTGOT should point to the start of the GOT,
|
3919 |
|
|
not to the start of the PLT. */
|
3920 |
|
|
if (htab->sgotplt)
|
3921 |
|
|
{
|
3922 |
|
|
dyn.d_un.d_val = (htab->sgotplt->output_section->vma
|
3923 |
|
|
+ htab->sgotplt->output_offset);
|
3924 |
|
|
bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
|
3925 |
|
|
}
|
3926 |
|
|
}
|
3927 |
|
|
else if (htab->is_vxworks
|
3928 |
|
|
&& elf_vxworks_finish_dynamic_entry (output_bfd, &dyn))
|
3929 |
|
|
bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
|
3930 |
|
|
else if (abi_64_p && dyn.d_tag == DT_SPARC_REGISTER)
|
3931 |
|
|
{
|
3932 |
|
|
if (stt_regidx == -1)
|
3933 |
|
|
{
|
3934 |
|
|
stt_regidx =
|
3935 |
|
|
_bfd_elf_link_lookup_local_dynindx (info, output_bfd, -1);
|
3936 |
|
|
if (stt_regidx == -1)
|
3937 |
|
|
return FALSE;
|
3938 |
|
|
}
|
3939 |
|
|
dyn.d_un.d_val = stt_regidx++;
|
3940 |
|
|
bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
|
3941 |
|
|
}
|
3942 |
|
|
else
|
3943 |
|
|
{
|
3944 |
|
|
switch (dyn.d_tag)
|
3945 |
|
|
{
|
3946 |
|
|
case DT_PLTGOT: name = ".plt"; size = FALSE; break;
|
3947 |
|
|
case DT_PLTRELSZ: name = ".rela.plt"; size = TRUE; break;
|
3948 |
|
|
case DT_JMPREL: name = ".rela.plt"; size = FALSE; break;
|
3949 |
|
|
default: name = NULL; size = FALSE; break;
|
3950 |
|
|
}
|
3951 |
|
|
|
3952 |
|
|
if (name != NULL)
|
3953 |
|
|
{
|
3954 |
|
|
asection *s;
|
3955 |
|
|
|
3956 |
|
|
s = bfd_get_section_by_name (output_bfd, name);
|
3957 |
|
|
if (s == NULL)
|
3958 |
|
|
dyn.d_un.d_val = 0;
|
3959 |
|
|
else
|
3960 |
|
|
{
|
3961 |
|
|
if (! size)
|
3962 |
|
|
dyn.d_un.d_ptr = s->vma;
|
3963 |
|
|
else
|
3964 |
|
|
dyn.d_un.d_val = s->size;
|
3965 |
|
|
}
|
3966 |
|
|
bed->s->swap_dyn_out (output_bfd, &dyn, dyncon);
|
3967 |
|
|
}
|
3968 |
|
|
}
|
3969 |
|
|
}
|
3970 |
|
|
return TRUE;
|
3971 |
|
|
}
|
3972 |
|
|
|
3973 |
|
|
/* Install the first PLT entry in a VxWorks executable and make sure that
|
3974 |
|
|
.rela.plt.unloaded relocations have the correct symbol indexes. */
|
3975 |
|
|
|
3976 |
|
|
static void
|
3977 |
|
|
sparc_vxworks_finish_exec_plt (bfd *output_bfd, struct bfd_link_info *info)
|
3978 |
|
|
{
|
3979 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
3980 |
|
|
Elf_Internal_Rela rela;
|
3981 |
|
|
bfd_vma got_base;
|
3982 |
|
|
bfd_byte *loc;
|
3983 |
|
|
|
3984 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
3985 |
|
|
|
3986 |
|
|
/* Calculate the absolute value of _GLOBAL_OFFSET_TABLE_. */
|
3987 |
|
|
got_base = (htab->elf.hgot->root.u.def.section->output_section->vma
|
3988 |
|
|
+ htab->elf.hgot->root.u.def.section->output_offset
|
3989 |
|
|
+ htab->elf.hgot->root.u.def.value);
|
3990 |
|
|
|
3991 |
|
|
/* Install the initial PLT entry. */
|
3992 |
|
|
bfd_put_32 (output_bfd,
|
3993 |
|
|
sparc_vxworks_exec_plt0_entry[0] + ((got_base + 8) >> 10),
|
3994 |
|
|
htab->splt->contents);
|
3995 |
|
|
bfd_put_32 (output_bfd,
|
3996 |
|
|
sparc_vxworks_exec_plt0_entry[1] + ((got_base + 8) & 0x3ff),
|
3997 |
|
|
htab->splt->contents + 4);
|
3998 |
|
|
bfd_put_32 (output_bfd,
|
3999 |
|
|
sparc_vxworks_exec_plt0_entry[2],
|
4000 |
|
|
htab->splt->contents + 8);
|
4001 |
|
|
bfd_put_32 (output_bfd,
|
4002 |
|
|
sparc_vxworks_exec_plt0_entry[3],
|
4003 |
|
|
htab->splt->contents + 12);
|
4004 |
|
|
bfd_put_32 (output_bfd,
|
4005 |
|
|
sparc_vxworks_exec_plt0_entry[4],
|
4006 |
|
|
htab->splt->contents + 16);
|
4007 |
|
|
|
4008 |
|
|
loc = htab->srelplt2->contents;
|
4009 |
|
|
|
4010 |
|
|
/* Add an unloaded relocation for the initial entry's "sethi". */
|
4011 |
|
|
rela.r_offset = (htab->splt->output_section->vma
|
4012 |
|
|
+ htab->splt->output_offset);
|
4013 |
|
|
rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
|
4014 |
|
|
rela.r_addend = 8;
|
4015 |
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
4016 |
|
|
loc += sizeof (Elf32_External_Rela);
|
4017 |
|
|
|
4018 |
|
|
/* Likewise the following "or". */
|
4019 |
|
|
rela.r_offset += 4;
|
4020 |
|
|
rela.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
|
4021 |
|
|
bfd_elf32_swap_reloca_out (output_bfd, &rela, loc);
|
4022 |
|
|
loc += sizeof (Elf32_External_Rela);
|
4023 |
|
|
|
4024 |
|
|
/* Fix up the remaining .rela.plt.unloaded relocations. They may have
|
4025 |
|
|
the wrong symbol index for _G_O_T_ or _P_L_T_ depending on the order
|
4026 |
|
|
in which symbols were output. */
|
4027 |
|
|
while (loc < htab->srelplt2->contents + htab->srelplt2->size)
|
4028 |
|
|
{
|
4029 |
|
|
Elf_Internal_Rela rel;
|
4030 |
|
|
|
4031 |
|
|
/* The entry's initial "sethi" (against _G_O_T_). */
|
4032 |
|
|
bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
|
4033 |
|
|
rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_HI22);
|
4034 |
|
|
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
|
4035 |
|
|
loc += sizeof (Elf32_External_Rela);
|
4036 |
|
|
|
4037 |
|
|
/* The following "or" (also against _G_O_T_). */
|
4038 |
|
|
bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
|
4039 |
|
|
rel.r_info = ELF32_R_INFO (htab->elf.hgot->indx, R_SPARC_LO10);
|
4040 |
|
|
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
|
4041 |
|
|
loc += sizeof (Elf32_External_Rela);
|
4042 |
|
|
|
4043 |
|
|
/* The .got.plt entry (against _P_L_T_). */
|
4044 |
|
|
bfd_elf32_swap_reloc_in (output_bfd, loc, &rel);
|
4045 |
|
|
rel.r_info = ELF32_R_INFO (htab->elf.hplt->indx, R_SPARC_32);
|
4046 |
|
|
bfd_elf32_swap_reloc_out (output_bfd, &rel, loc);
|
4047 |
|
|
loc += sizeof (Elf32_External_Rela);
|
4048 |
|
|
}
|
4049 |
|
|
}
|
4050 |
|
|
|
4051 |
|
|
/* Install the first PLT entry in a VxWorks shared object. */
|
4052 |
|
|
|
4053 |
|
|
static void
|
4054 |
|
|
sparc_vxworks_finish_shared_plt (bfd *output_bfd, struct bfd_link_info *info)
|
4055 |
|
|
{
|
4056 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
4057 |
|
|
unsigned int i;
|
4058 |
|
|
|
4059 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
4060 |
|
|
for (i = 0; i < ARRAY_SIZE (sparc_vxworks_shared_plt0_entry); i++)
|
4061 |
|
|
bfd_put_32 (output_bfd, sparc_vxworks_shared_plt0_entry[i],
|
4062 |
|
|
htab->splt->contents + i * 4);
|
4063 |
|
|
}
|
4064 |
|
|
|
4065 |
|
|
bfd_boolean
|
4066 |
|
|
_bfd_sparc_elf_finish_dynamic_sections (bfd *output_bfd, struct bfd_link_info *info)
|
4067 |
|
|
{
|
4068 |
|
|
bfd *dynobj;
|
4069 |
|
|
asection *sdyn;
|
4070 |
|
|
struct _bfd_sparc_elf_link_hash_table *htab;
|
4071 |
|
|
|
4072 |
|
|
htab = _bfd_sparc_elf_hash_table (info);
|
4073 |
|
|
dynobj = htab->elf.dynobj;
|
4074 |
|
|
|
4075 |
|
|
sdyn = bfd_get_section_by_name (dynobj, ".dynamic");
|
4076 |
|
|
|
4077 |
|
|
if (elf_hash_table (info)->dynamic_sections_created)
|
4078 |
|
|
{
|
4079 |
|
|
asection *splt;
|
4080 |
|
|
|
4081 |
|
|
splt = bfd_get_section_by_name (dynobj, ".plt");
|
4082 |
|
|
BFD_ASSERT (splt != NULL && sdyn != NULL);
|
4083 |
|
|
|
4084 |
|
|
if (!sparc_finish_dyn (output_bfd, info, dynobj, sdyn, splt))
|
4085 |
|
|
return FALSE;
|
4086 |
|
|
|
4087 |
|
|
/* Initialize the contents of the .plt section. */
|
4088 |
|
|
if (splt->size > 0)
|
4089 |
|
|
{
|
4090 |
|
|
if (htab->is_vxworks)
|
4091 |
|
|
{
|
4092 |
|
|
if (info->shared)
|
4093 |
|
|
sparc_vxworks_finish_shared_plt (output_bfd, info);
|
4094 |
|
|
else
|
4095 |
|
|
sparc_vxworks_finish_exec_plt (output_bfd, info);
|
4096 |
|
|
}
|
4097 |
|
|
else
|
4098 |
|
|
{
|
4099 |
|
|
memset (splt->contents, 0, htab->plt_header_size);
|
4100 |
|
|
if (!ABI_64_P (output_bfd))
|
4101 |
|
|
bfd_put_32 (output_bfd, (bfd_vma) SPARC_NOP,
|
4102 |
|
|
splt->contents + splt->size - 4);
|
4103 |
|
|
}
|
4104 |
|
|
}
|
4105 |
|
|
|
4106 |
|
|
elf_section_data (splt->output_section)->this_hdr.sh_entsize
|
4107 |
|
|
= (htab->is_vxworks || !ABI_64_P (output_bfd))
|
4108 |
|
|
? 0 : htab->plt_entry_size;
|
4109 |
|
|
}
|
4110 |
|
|
|
4111 |
|
|
/* Set the first entry in the global offset table to the address of
|
4112 |
|
|
the dynamic section. */
|
4113 |
|
|
if (htab->sgot && htab->sgot->size > 0)
|
4114 |
|
|
{
|
4115 |
|
|
bfd_vma val = (sdyn ?
|
4116 |
|
|
sdyn->output_section->vma + sdyn->output_offset :
|
4117 |
|
|
0);
|
4118 |
|
|
|
4119 |
|
|
SPARC_ELF_PUT_WORD (htab, output_bfd, val, htab->sgot->contents);
|
4120 |
|
|
}
|
4121 |
|
|
|
4122 |
|
|
if (htab->sgot)
|
4123 |
|
|
elf_section_data (htab->sgot->output_section)->this_hdr.sh_entsize =
|
4124 |
|
|
SPARC_ELF_WORD_BYTES (htab);
|
4125 |
|
|
|
4126 |
|
|
return TRUE;
|
4127 |
|
|
}
|
4128 |
|
|
|
4129 |
|
|
|
4130 |
|
|
/* Set the right machine number for a SPARC ELF file. */
|
4131 |
|
|
|
4132 |
|
|
bfd_boolean
|
4133 |
|
|
_bfd_sparc_elf_object_p (bfd *abfd)
|
4134 |
|
|
{
|
4135 |
|
|
if (ABI_64_P (abfd))
|
4136 |
|
|
{
|
4137 |
|
|
unsigned long mach = bfd_mach_sparc_v9;
|
4138 |
|
|
|
4139 |
|
|
if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
|
4140 |
|
|
mach = bfd_mach_sparc_v9b;
|
4141 |
|
|
else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
|
4142 |
|
|
mach = bfd_mach_sparc_v9a;
|
4143 |
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, mach);
|
4144 |
|
|
}
|
4145 |
|
|
else
|
4146 |
|
|
{
|
4147 |
|
|
if (elf_elfheader (abfd)->e_machine == EM_SPARC32PLUS)
|
4148 |
|
|
{
|
4149 |
|
|
if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US3)
|
4150 |
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
|
4151 |
|
|
bfd_mach_sparc_v8plusb);
|
4152 |
|
|
else if (elf_elfheader (abfd)->e_flags & EF_SPARC_SUN_US1)
|
4153 |
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
|
4154 |
|
|
bfd_mach_sparc_v8plusa);
|
4155 |
|
|
else if (elf_elfheader (abfd)->e_flags & EF_SPARC_32PLUS)
|
4156 |
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
|
4157 |
|
|
bfd_mach_sparc_v8plus);
|
4158 |
|
|
else
|
4159 |
|
|
return FALSE;
|
4160 |
|
|
}
|
4161 |
|
|
else if (elf_elfheader (abfd)->e_flags & EF_SPARC_LEDATA)
|
4162 |
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc,
|
4163 |
|
|
bfd_mach_sparc_sparclite_le);
|
4164 |
|
|
else
|
4165 |
|
|
return bfd_default_set_arch_mach (abfd, bfd_arch_sparc, bfd_mach_sparc);
|
4166 |
|
|
}
|
4167 |
|
|
}
|
4168 |
|
|
|
4169 |
|
|
/* Return address for Ith PLT stub in section PLT, for relocation REL
|
4170 |
|
|
or (bfd_vma) -1 if it should not be included. */
|
4171 |
|
|
|
4172 |
|
|
bfd_vma
|
4173 |
|
|
_bfd_sparc_elf_plt_sym_val (bfd_vma i, const asection *plt, const arelent *rel)
|
4174 |
|
|
{
|
4175 |
|
|
if (ABI_64_P (plt->owner))
|
4176 |
|
|
{
|
4177 |
|
|
bfd_vma j;
|
4178 |
|
|
|
4179 |
|
|
i += PLT64_HEADER_SIZE / PLT64_ENTRY_SIZE;
|
4180 |
|
|
if (i < PLT64_LARGE_THRESHOLD)
|
4181 |
|
|
return plt->vma + i * PLT64_ENTRY_SIZE;
|
4182 |
|
|
|
4183 |
|
|
j = (i - PLT64_LARGE_THRESHOLD) % 160;
|
4184 |
|
|
i -= j;
|
4185 |
|
|
return plt->vma + i * PLT64_ENTRY_SIZE + j * 4 * 6;
|
4186 |
|
|
}
|
4187 |
|
|
else
|
4188 |
|
|
return rel->address;
|
4189 |
|
|
}
|